uQ,øjHj, úia;rd;aul ridhkh d f

1 Y%S ,xld újD; úYajúoHd,hSh m%ldYkhls

2016

uQ,øjHj, úia;rd;aul ridhkh

d-f.dkqj

ridhk úoHdwOHkdxYh Y%S ,xld újD; úYajúoHd,h


2016

1. d-f.dkqfõ uQ,øjH ms<sn| ye¢kaùula

ye¢kaùu ieis 1 isg 5 olajd d-f.dkqfõ uQ,øjHhkays ridhkh yeoErSug n,dfmdfrd;a;= fõ' d-f.dkqfõ uQ,øjHhkays ridhkh b;d is;a .kakd iq`M jk w;r th s- yd p-

f.dkqj, uQ,øjHhkays ridhkhkaf.ka fndfyda fihska fjkia fõ fuu ieish ;=< § uOH f,day mrudKqj, bf,lafg%dak úkHdi ix.; ixfhda.hkays ixhq;sh ix.; ixfhda.hkays TlaislrK wxl ix.; wxlh iy cHdñ;sh jeks jeo.;a ixl,am yd lreKq y÷kajd fok w;r fïjd bÈß ieis f;areï .ekSug bjy,a jkq we;

11 d-f.dkqj wiïmQ¾K f,i fyda mQ¾K f,i msreKq d-ldËsl iys; uQ,øjH d-f.dkqjg wh;a fõ ksoyia f,dayhla ie,l+ úg nd bf,lafg%dak msÍu (n+1)s bf,lafg%dak msÍug miqj o (n+1)p bf,lafg%dak msÍug fmr o isÿfõ tu ksid d-f.dkqfõ uQ,øjH tu s- yd p-f.dkqj, uQ,øjH w;r msysgqjd we; idudkHfhka d-f.dkqfõ uQ,øjHj, bf,lafg%dak úkHdih (n+1)sndm fyda (n+1)s1ndm, n = 3, 4, 5, 6 iy m = 1, 2, 3

.....fyda 10 f,i oelaúh yelsh d-f.dkqj fY%aKs 4 lska iukaú; jk nj wdj¾;s;d j.=j foi neÆúg Tng fmkS hkq we; tajd 3d, 4d, 5d yd 6d fY%aKs jk w;r tajd ms<sfj<ska 4 jk 5 jk 6 jk yd 7 jk wdj¾;j, msysghs 3d-fY%aKsfha uQ,øjH (Z = 21 isg 30&

uQ,øjH Sc Ti V Cr Mn Fe Co Ni Cu Zn

Z 21 22 23 24 25 26 27 28 29 30

4d-fY%aKsfha uQ,øjH (Z = 39 isg 48&

uQ,øjH Y Zr Nb Mo Tc Ru Rh Pd Ag Cd

Z 39 40 41 42 43 44 45 46 47 48

5d-fY%aKsfha uQ,øjH (Z = 57, 72 isg 80&

uQ,øjH La Hf Ta W Re Os Ir Pt Au Hg

Z 57 72 73 74 75 76 77 78 79 80


2016

6d-fY%aKsfha uQ,øjH (Z = 89, 104 isg 112&

uQ,øjH Ac Rf Db Sg Bh Hs Mt Ds Rg Cn

Z 89 104 105 106 107 108 109 110 111 112

3d-uQ,øjH iy 4d-uQ,øjH ms<sfj<ska mrudKql wxl 21-30 iy 39-48 olajhs isria ldKavhl msysá uQ,øjH ish,a, tlu ldKavhlg whs;s jk w;r"ta wkqj Sc, Y, La

iy Ac tlu ldKavhlg whs;s jk w;r" th 3 jk ldKavh f,i y÷kajhs tf,i u Cr, Mo iy W, 6 jk ldKavhg wh;a fõ mokï mdGud,d uÜgfï § 3d-uQ,øjHhkays ridhkh ms<sn|j jeä wjOdkhla fhduq flf¾

12 3d-uQ,øjH

3d-ldËsl msßSfuka 3d-uQ,øjH we;s fõ mrudKqjl bf,lafg%dak úkHdih u.ska tu mrudKqfõ .=K fyda tys ixfhda.hkays .=K ms<sn|j jákd f;dr;=re fokq ,nk nj wms oksuq ^1 yd 2 jk ieis n,kak& WodyrKhla f,i Ca ys bf,lafg%dak úkHdih 1s22s22p63s23p64s2 jk w;r le,aishï Ca2+ whkh myiqfjka idohs 3d-uQ,øjHhkays .=K ms<sn|j 2 jk ieisfha § idlÉPd flfrkq we; Yla;s uÜgïj,g bf,lafg%dak msÍfï wkqms<sfj< 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d,

5p, 6s, 4f, 5d, 6p, 7s hkdoS jYfhka nj wms oksuq 3d-ldËsl 5 la we;s w;r tla ldËslhlg Wmßu jYfhka bf,lafg%dak 2 la oeßh yel 3d-uQ,øjHhkays bf,lafg%dak úkHdih ms<sn|j wms i,ld n,uq

13 3d-uQ,øjHhkays bf,lafg%dak úkHdih

ialekaähï (Sc) m<uqjk d-uQ,øjHh jk w;r tys bf,lafg%dak úkHdih 1s2 2s2 2p6

3s2 3p6 4s2 3d1 fõ 3d-uQ,øjHhkays ^Z = 21 isg 30& bf,lafg%dakúkHdi iy ldKav wxl my; olajd we;


2016

uQ,øjH ^ku& Z bf,lafg%dak

úkHdih ldKav wxlh

Sc îalekaähï& 21 [Ar]4s23d1 3

Ti ^ghsfÜkshï& 22 [Ar]4s23d2 4

V ^jefkaähï& 23 [Ar]4s23d3 5

Cr ^fl%dañhï& 24 [Ar]4s13d5 6

Mn ûex.kSia& 25 [Ar]4s23d5 7

Fe ^whka& 26 [Ar]4s23d6 8

Co ^fldafnda,aÜ& 27 [Ar]4s23d7 9

Ni ^ksl,a& 28 [Ar]4s23d8 10

Cu ^fldm¾& 29 [Ar]4s13d10 11

Zn îskala& 30 [Ar]4s23d10 12

[Ar] = 1s1, 2s2, 2p6, 3s2, 3p6; Cr iy Cu ys bf,lafg%dak úkHdih ms<sfj<ska [Ar]4s13d5 iy [Ar]4s13d10. ldKav wxlh by; oelafjk mßÈ ldKav wxlh (Group number) ksoyia f,dayfha ^Y=kH ixhqc fyda

oM & 4s iy 3d bf,lafg%dakj, tl;=jg iudk fõ WodyrKhla f,i Sc ys bf,lafg%dak úkHdih [Ar]4s23d1 fyda [Ar]3d14s2 jk w;r ldKav wxlh 3 fõ tuksid Sc, Y yd La hk uQ,øjH 3 jk ldKavhg o ^merKs IIIB ldKavh&" Fe, Ru,

yd Os hk uQ,øjH 8 jk ldKavhg o ^merKs VIIIB ldKavh& Zn, Cd iy Hg hk uQ,øjH 12 jk ldKavhg o ^merKs IIB ldKavh& wh;a fõ

ls%hdldrlu

11 fud,síäkï (Mo) 5 jk wdj¾;fha 6 jk ldKavhg wh;a f,dayhls tys bf,lafg%dak úkHdih ,shkak

12 mrudKql l%udxlh 40 jk uQ,øjHfha bf,lafg%dak úkHdih ,shkak


2016

3d-ldËsl 5 la iy 4s-ldËsl 1 la mj;S 3d-uQ,øjHhkays bf,lafg%dak úkHdihka my; oelafjk wdldrhg wjika ljpfha bf,lafg%dak 3d-ldËsl 5 iy 4s ldËslfhys fn§ mj;sk f,i oelaúh yelsh fldgqjla u.ska iEu ldËslhlau ksrEmKh flf¾ V, Cr, Mn, Fe, Ni iy Cu ys bf,lafg%dak úkHdi my; olajd we;

fuu uQ,øjH ish,af,ys u hq., fkdjQ bf,lafg%dak tkï úhq.au bf,lafg%dak (unpaired) we;s nj Tng oelsh yelsh ^Wod( V yd Cr j,g ms<sfj<ska úhq.au bf,lafg%dak 3 la iy 6 la mj;S&. tuksid tajd wkq pqïNl (paramagnetic) fõ

m%( Cr iy Cu ys bf,lafg%dak úkHdih [Ar]3d54s1 iy [Ar]3d104s1 f,i

,shkafka ukao@

ms( d-ldËsl 5 la we; fya;=j jkafka ksis f,i w¾Oj msreKq (d5) iy iïmQ¾Kfhkau msreKq (d10) d-ldËslj,g wu;r ia:dhs;djhla ,eîuhs

ls%hdldrlu 13 Y=kH ixhqc fldfnda,aÜys 3d ldËsl 5 iy 4s ldËslfhys wjidk ljpfha

bf,lafg%dak jHdma; jk wdldrh ,shkak tys hq.au fkdjQ bf,lafg%dak .Kk ks¾Kh lrkak

4s3d

[Ar]

[Ar]

[Ar]

[Ar]

[Ar]

[Ar]V

Cr

Mn

Fe

Ni

Cu


2016

1.4 legdhkj, bf,lafg%dak úkHdi Y=kH ixhqc f,dayhlska (Mo) bf,lafg%dak 1 la bj;aùu u.ska legdhkh ^M+) we;sfõ ksoiqkla f,i V0 fj;ska ms<sfj<ska 1 2 3 iy 4 jk bf,lafg%dak bj;aùu u.ska V+, V2+, V3+ iy V4+ we;sfõ V+, V2+, V3+ iy V4+ whkj, bf,lafg%dak úkHdi my; oelafõ

fuys§ 3d-bf,lafg%dak msg lsÍug fmr 4s-bf,lafg%dak msglrkq ,efí fuhg fya;=j jkafka f,day legdhkhkays 4s-ldËslhkays Yla;shg jvd 3d-ldËslhkays Yla;sh wvqh ^bf,lafg%dak msÍfï§ 4s-ldËslj, Yla;sh 3d-ldËslj, Yla;shg jvd wvqh&

ls%hdldrlu 14 Co+ iy 3Co + ys bf,lafg%dak úkHdi ks¾Kh lrkak

15 wdka;ßl uQ,øjH

wdka;ßl uQ,øjH (M) wiïmQ¾Kj msreKq d-ldlaIsl iys; whk (M+, M+, M3+) wju jYfhka 1 la fyda iEÈh hq;= fõ wdka;ßl f,day TlaislrK wjia:d lsysmhla fmkajk w;r tajd j¾Kj;a ixlS¾K whk (coloured complex ions) idohs ^2 jk ieish n,kak& Cu wdka;ßl f,dayhla jk w;r th [Ar]3d94s0 bf,lafg%dak úkHdih iys; Cu2+ whkh idok w;r Cu j¾Kj;a ixfhda. idohs' idudkHfhka Sc iy Zn wdka;ßl uQ,øjH f,i fkdie,flk w;r Sc, d-bf,lafg%dak fkdue;s (3d0 )

Sc3+ muKla o Zn iïmQ¾Kfhkau msreKq d-ldlaIsl iys; (3d10) Zn2+ muKla o idohs iuyr fmd;aj, Sc wdka;ßl f,dayhla f,i i,lk w;r Bg fya;=jkafka Y=kH ixhqc ialekaähïys (Sc0) w¾Oj msreKq d-ldlaIslhla [Ar]3d14s2 fyda [Ar]4s23d1 ;sîuhs

V+ = [Ar]3d34s1 = [Ar]

V2+ = [Ar]3d34s0 = [Ar]

V3+ = [Ar]3d24s0 = [Ar]

V4+ = [Ar]3d14s0 = [Ar]

3d 4s


2016

16 nkaO (Ligands) odhl mrudKqjla iys; wKqjla fyda whkhla nkaOhla (ligand) f,i y÷kajhs iuyr nkaO WodiSk jk w;r ^Wod( NH3, CO, H2O& iuyr tajd RK wdfrdams; fõ ^Wod( Cl−, N−, CO3

−, SO4−&

WodyrKhla f,i NH3 wKqfjys N u; jQ tlir bf,lafg%dak hq.,h uOH f,day whkh (Mn+) fj; ,nd §fuka ix.; fyda odhl nkaOkhla we;s fõ

M n+ + :NH3 → M n+:NH3 fyda [M−NH3]n+

fuys § Mn+ u; jQ wfkla nkaO fmkakqï lr fkdue; fuys § khsg%cka (N) odhl mrudKqj fyda ix.; mrudKqj f,i y÷kajhs

17 ix.; ixfhda. uOH f,day whkh (metal ion) fyda uOH mrudKqj (central atom) (M), nkaO (L) lsysmhla iu`. tlaùfuka my; oelafjk f,i ix.; ixfhda.hla ksrEmKh l< yel

M + n L → [MLn] WodiSk ix.; ixfhda. fyda ixlS¾K whkj, iQ;%hka ieu úg u fldgq jryka ;=< ,shkq ,efí ix.; ixfhda.hl ridhksl iQ;%h ,sùfï § m<uqj f,dayh i|yd jq ixfla;h o fojkqj RK wdfrdams; nkaO i|yd jQ ixfla; o Bg miqj Wodisk nkaO i|yd jQ ixfla; o ,shkq ,efí wekdhksl nkaO tllg jvd jeä ixLHdjla we;súg bx.%Sis wËrdÈ ms<sfj<g ,shkq ,nk w;r th WodiSk nkaO i|yd o isÿ flf¾ iuyrla ixfhda.j, ridhksl iQ;% my; oelafõ

(i) [CrBr3(NH3)3] kuq;a [Cr(NH3)3Br3] fkdfõ

(ii) [FeClF2(NH3)3] kuq;a [FeF2Cl(NH3)3] fkdfõ

(iii) [CoBr3(NH3)(CO)2] kuq;a [CoBr3(CO)2(NH3)] fkdfõ

ixlS¾K wKqjla fyda whkhla ødjKhl øjKh lsÍfï § tys ix>gl njg my; i|yka f,i úfhdackh fkdjk nj ie,lsh hq;=h

[CoBr3(NH3)3] Co3+ + 3 Br− + 3 NH3

ls%hdldrlu

15 Na+, Fe3+, CN− iy NH3 wvx.= ødjKhl we;súh yels ir, ,jK iy ix.; ixfhda. fokak


2016

18 TlaislrK wxlh (O.N.) uOH f,day whkhl (metal centre) TlaislrK wxlh hkq f,dayh fj;ska ishü nkaO bj;a jQ l, f,dayh u; we;sjk wdfrdamKhhs WodyrKhla f,i

[CoBr3(NH3)3] fj;ska Br− whk 3 la iy WodiSk wefudakshd wKq 3 la bj;a ùfuka Co u; Ok 3 l ^+3) wdfrdamKhla we;s fõ tuksid [CoBr3(NH3)3] ys Co ys TlaislrK wxlh +3 fyda +III fõ

fldgq jryk ;=< jQ wdfrdamKj, tl;=j ixlS¾K whkfha wdfrdamKhg [ ]n+ fyda

[ ]n− ^jrykg msáka we;s wdfrdamKh& iudk jk nj ie,lsh hq;=h [CoBr3(NH3)3] jeks WodiSk ixlS¾Khl n = 0 fõ

m%( my; oelafjk uOH f,day whkhkays (metal centres) TlaislrK wxlhka ks¾Kh lrkak

(a) [Ag(NH3)2]+ iy (b) [NiCl2(NH3)2]

ms( NH3 WodiSk nkaOhla jk w;r N u; wdfrdamKh Y=kH fõ Cl− talixhqc wekdhksl (monoanionic) nkaOhla jk w;r laf,daÍka u; wdfrdamKh −1 fõ [Ag(NH3)2]

+ ixlS¾K legdhkhla jk w;r tys wdfrdamKh +1 fõ [NiCl2(NH3)2] WodiSsk ixlS¾Khla jk w;r tys wdfrdamKh Y=kH fõ

is,aj¾ iy ksl,ays TlaislrK wxl my; oelafjk f,i .Kkh l< yelsh uOH f,day whkfhys TlaislrK wxlh y f,i i,luq oeka fldgq jryk ;=< jQ wdfrdamKj, tl;=j ks¾Kh lrkak th ixlS¾Kh$ ixlS¾K whkfhys wdfrdamKhg iudk fõ

(a) [ ] ;=< wdfrdamKj, tl;=j ( )y 2 0 1= + = + = ixlS¾K legdhkfha

wdfrdamKh y = + 1 Ag ys TlaislrK wxlh = +1

(b) [ ] ;=< wdfrdamKj, tl;=j ( ) ( )y 2 1 2 0 0= + − + =

y = +2 Ni ys TlaislrK wxlh = + 2

ls%hdldrlu

16 [Fe(CN)6]− ys whkaj, TlaislrK wxlh ks¾Kh lrkak


2016

19 ix.; wxlh (coordination number) nkaO ¨úia" NIau jk w;r tajd uOH f,day whkfha ysia d-ldËsl fj; bf,lafg%dak hq., m%odkh lr ix.; nkaOk (coordinationbonds) idohs idok nkaOk ixLHdj ix.; wxlh (C.N.) f,i y÷kajhs' WodyrKhla f,i [Fe(CN)6]− yd [Ag(NH3)2]

+ ys whka iy is,aj¾ ys ix.; wxlhka ms<sfj<ska 6 yd 2 fõ

ls%hdldrlu

17 [CrBrCl2(NH3)3], [Cu(NH3)4]SO4 iy [Fe(CO)5] ys uOH f,day whkhkays ix.; wxlhka ks¾Kh lrkak

110 cHdñ;sh (Geometry) uOH f,day whkh (M) jgd nkaO (L) wjldYfha weisÍ we;s wdldrh ixlS¾Khl cHdñ;sh ^fyda yevh& f,i w¾: oelaúh yelsh 1.1 j.=fjys oelafjk mßÈ f,dayfha ix.; wxlhla iu`. cHdñ;sh fjkiajk wdldrh oelsh yelsh WodyrKhla f,i [ML2] iQ;%h iys; ixfhda.hla f¾Çh (linear) cHdñ;sh fmkajhs [ML4] iQ;%h iys; ixfhda.hkag fohdldrhl cHdñ;Ska fmkaúh yelsh tkï p;=ia;,Sh (tetrahedral)

iy ;,Sh iup;=ri%dldr (square planar). [ML5] iQ;%h iys; ixfhda.hla o ;%s wdk;s oaúmsrñãh (trigonal bipyramidal) iy iup;=ri% msrñãh hkdoS jYfhka fohdldrhl cHdñ;Ska fmkajhs


2016

1.1 j.=j: f,dayj, ix.; wxlh wkqj cHdñ;sfha fjkiaùu

C.N. cHdñ;sh(iQ;%h) WodyrKh

2 f¾Çh [ML2]

3 ;,Sh ;%sfldaKdldr [ML3]

4 p;=ia;,Sh [ML4]

4 ;,Sh iup;=ri%dldr [ML4]

5 ;%s wdk;s oaúmsrñãh [ML5]

5 iup;=ri%dldrmsrñãh [ML5]

6 wIaG;,Sh [ML6]


2016

ls%hdldrlu 18 (i) CO3

− (ii) MnO4− iy (iii) I3

− ys cHdñ;Ska ,shkak

idrdxYh

• d-uÜgug bf,lafg%dak msÍfuka d-f.dkqj we;sfõ 3d, 4d, 5d iy 6d fY%aKs ms<sfj<ska 4 jk 5 jk 6 jk iy 7 jk wdj¾;j, msysghs

• idudkHfhka d-f.dkqfõ uQ,øjHj, bf,lafg%dak úkHdi (n+1)s2ndm fyda

(n+1)s1ndm f,i úoyd oelaúh yelsh n = 3, 4, 5 fyda 6 iy m = 1, 2, 3....fyda 10

• Sc isg Cu olajd we;s uQ,øjHhkays úhq.au bf,lafg%dak (unpaired electron) mj;sk

w;r tu ksid tajd wkq pqïNl (paramagnetic) fõ

• ksoyia f,dayhl 4s-iy 3d-bf,lafg%dakj, tl;=j ldKav wxlhg iudk fõ • wiïmQ¾Kj msreKq d-ljp iys; whk tlla fyda idok uQ,øjH wdka;ßl

uQ,øjHhla fõ ridhksl yeisÍu ie,l+úg Sc yd Zn wdka;ßl uQ,øjH f,i ie,lsh fkdyel

• odhl mrudKq 1 la iys; wKqjla fyda whkhla nkaOhla f,i l%shd lrhs

iuyrla WodiSk nkaO ^Wod( NH3, CO, H2O) jk w;r iuyrla RK wdfrdams; nkaO ^Wod( Cl−, CN−, CO3

−, SO4−& fõ

• uOH f,day whkfha TlaislrK wxlh hkq ishü nkaO bj;a jQ miq

f,dayhg ,efnk wdfrdamKh hs

• tfia uOH f,day mrudKqj fj; fl,skau ne£ we;s mrudKq .Kk f,dayfha ix.; wxlh (coordination number) fõ

wruqKq

fuu ieish yodrd wjika jQ miqj my; oE Tng yels úh hq;=h

• d-uQ,øjHhl ldKav wxlh ks¾Kh lsÍu

• WodiSk wekdhksl nkaO ir, ,jK iy ix.; ixfhda. y÷kd.ekSu

• 3d-uQ,øjH iy tajdfha legdhkj, bf,lafg%dak úkHdi ,sùu

• uOH f,day whkhl TlaislrK wxlh .Kkh lsÍu

• uOH f,day whkhl ix.; wxlh ks¾Kh lsßu ir, ix.; ixfhda.hl fyda ixlS¾K whkhl cHdñ;sh ks¾Kh lsßu


2016

ls%hdldrlu

19 my; ixlS¾Kj, we;s uOH f,day mrudKqj, TlaislrK iy ix.; wxlhka ks¾Kh lrkak

(a) [Fe(OH)(H2O)5]SO4

(b) [CoCl(CN)(NO2)(NH3)3]

(c) [CoCl(NH3)5](NO3)2

(d) K3[Fe(CN)5NO]

110 my; we;s ixfhda.$ixlS¾K whkj, jHqyhka w¢kak

(a) [Ag(NH3)2]+

(b) [Ni(CO)4]

(c) [Ni(CN)4]−

(d) [Fe(CO)5]

(e) [Cr(NH3)6]3+

(f) [Co(C2O4)3]−

111 Cu2+, Fe3+ iy Mn2+ ys bf,lafg%dak úkHdihka ,shkak +7 TlaislrK wjia:dfõ we;s uex.kSia wvx.= ixfhda.h fyda whkfhys iQ;%h (formula)

fokak 112 my; wKqj, yevhka y÷kd .kak (i) HCl (ii) BF3 (iii) CH4 (iv) PCl5


2016

2. d-f.dkqfõ uQ,øjHhkays .=K ye¢kaùu 1 jk ieisfha § ix.; ridhkhkfha Ndú;d jk jeo.;a ixl,am yd Í;Ska wms idlÉPd lf<uq. fuu ieisfha § d-f.dkqfõ uQ,øjHhkays .=Kdx. jk ikakdhl;djh" øjdxl yd ;dmdxl" úoHq;a iDK;djh" whkSlrK Yla;sh" whksl wrh" úúO TlaislrK wjia:d iy f,dayuh ixlS¾Khkays W;afm%arl .=K ms<sn|j i,ld n,uq.

2.1 f,dayuh ,laIK iy ikakdhl;djh 3d-f.dkqfõ uQ,øjH ish,a,u f,day fõ. iEu tllau Ok wdfrdams; oe,silska iy ksoyia bf,lafg%dakj,ska iukaú; fõ ^2.1 rEmh&. uQ,øjH ish,a,u fyd| ;dm iy úoHq;a ikakdhl fõ. úoHq;a ikakdhl;djh" ksoyia bf,lafg%dak u.ska Woa§mkh fõ.

f,dayuh oe,si ;dm Yla;sh fkdlvjd úysÿùu i|yd wdOdr fõ.

f,day whk

bf,lafg%dak ihqr

2.1 rEmh:f,dayhl wdlD;shla

2.2 øjdxl iy ;dmdxl s-f.dkqfõ uQ,øjHhkag jvd d-f.dkqfõ uQ,øjHhkag by< øjdxl iy ;dmdxl mj;S. 3d-uQ,øjHhkays iuyrla .=K 2.1 j.=fjys § we;. 3d-fYa%Ksfhys øjdxl Sc isg V olajd l%ufhka jeäjk w;r Fe isg Zn olajd wvqfõ ^rEmh 2.2 n,kak&' Cr iy Fe g jvd Mn ys øjdxl iy ;dmdxl wvqh. 3d-fYa%Ksfhys wfkl=;a uQ,øjH yd ii|k l, Zn j,g wvqu øjdxl iy ;dmdxl mj;S.

300

1300

2300

3300

4300

5300

Sc T i V Cr M n Fe Co Ni Cu Zn

f irst row transition elements

Te

mp

era

ture

/0C

3d-wdka;ßl uQ,øjH

WIaK

;ajh /

Co

2.2 rEmh: Sc isg Zn olajd jQ uq,øjHhkays øjdxl yd ;dmdxl


2016

2.3 >k;aj iy úoHq;a >DK;djh

s- iy p-f.dkqfõ uQ,øjH yd ii|k l, d-f.dkqfõ uQ,øjHhka by<>k;aj fmkajhs. 3d-fYa%Ksfha § Sc isg Cu olajd >k;aj jeäfõ ^2.1 j.=j n,kak&. Os iy Ir >k;ajh jeäu uQ,øjHhka jk w;r tys w.h 22.6 g cm− fõ. 1 jk ldKavfha f,dayhkag jvd d-f.dkqfõ uQ,øjHhkays úoHq;a Ok;djh wvq fõ. 3d-fYa%Ksfha § Sc

isg Cu olajd úoHq;a >DK;djfhys iq¿ jeäùula fmkakqï lrhs. ^2.3 yd 2.4 rEm n,kak&.

2

3

4

5

6

7

8

9

10

Sc Ti V Cr Mn Fe Co Ni Cu Zn

first row transition elements

den

sity

/g

cm

-3>K

;ajh g

cm

−3

3d-wdka;ßl uQ,øjH

2.3 rEmh: Sc isg Zn olajd jQ uQ,øjHhkays WIaK;aj úp,kh

1

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.8

Sc Ti V Cr Mn Fe Co Ni Cu Zn

first row transition elements

ele

ctr

on

eg

ativ

ity

úoH

q;a i

DK;dj

h

3d-wdka;ßl uQ,øjH

2.4 rEmh: Sc isg Zn olajd jQ uQ,øjHhkays úoHq;a iDK;d úp,kh


2016

2.1 j.=j: 3d-uQ,øjHhkays iuyrla .=K

uQ,øjHh Sc Ti V Cr Mn Fe Co Ni Cu Zn

mrudKql wrh /pm 144 132 122 118 117 117 116 115 117 125

whksl wrh (M2+) /pm - 86 79 80 83 78 75 69 73 74

Øjdxlh / oC 1539 1667 1915 1900 1244 1535 1495 1452 1083 420

;dmdxlh / oC 2748 3285 3350 2960 2060 2750 3100 2920 2570 907

>k;ajh / (g cm−3) 3.01 4.51 6.11 7.14 7.43 7.86 8.90 8.91 8.96 7.14

úoHq;a iDK;djh 1.2 1.3 1.45 1.55 1.6 1.65 1.7 1.75 1.75 1.6

E0 (M2+/M) / V - -1.63 -1.17 -0.91 -1.18 -0.44 -0.28 -0.25 +0.34 -0.76

2.4 whksl wrh Sc isg Zn olajd mrudKql iy whksl wrhkays wvqùula wms wfmalaId lrkafkuq. flfia kuqÿ M2+ whkhkays whksl wrhka i|yd mÍlaIKd;aulj ,nd.;a w.hka V

iy Ni i|yd wjuhka iys;j jl%hla fmkajhs. tkï M2+ whkhkays whksl wrh Sc

isg V olajd l%ufhka wvqjk w;r V isg Mn olajd jeäfõ' Mn isg Zn olajd o fuu rgdju Ni i|yd wjuh foñka ksÍlaIKh l< yelsh' 3d-fYa%Ksh ie,l+ úg oaú ixhqc whk i|yd jQ wju whksl wrh Ni úiska fmkajhs ^j.=j 2.1 n,kak&.

100

90

80

70

CoTi V Cr Mn Cu ZnCa Sc Fe Ni

Ionic radius

Expected

Observed

whksl wrh

n,dfmdfrd;a;= jk úp,kh

ksÍlaIs; úp,kh

2.5 rEmh: 3d-fYa%Ksfhys M2+ whkhkays whksl wrhkays úp,kh


2016

2.5 whkSlrK Yla;sh uQ,øjHhkays m%:u whkSlrK Yla;sh Sc isg Zn olajd iq¿ jYfhka jeäùula fmkajhs ^j.=j 2.2 n,kak&. Sc ys 4 jk whkSlrK Yla;sh 3 jk whkSlrK Yla;shg jvd ie,lsh hq;= ;rï jeä w.hla fmkajhs' tfiau Ti ys 5 jk whkSlrK Yla;sho 4

jk whkSlrK Yla;shg jvd wêl w.hla fmkajhs.

2.2 j.=j: 3d-uQ,øjHhkays whkSlrK Yla;Ska

uQ,øjH whkSlrK Yla;Ska/ kJ mol−1

1jk 2jk 3jk 4jk 5jk 6jk

Sc 632 1235 2390 7130 8870 10700

Ti 655 1310 2650 4170 9620 11600

V 650 1415 2830 4600 6280 12400

Cr 653 1590 2990 4900 7070 8700

Mn 716 1510 3250 5190 7360 9750

Fe 762 1560 2960 5400 7620 10100

Co 757 1640 3230 5100 7910 10500

Ni 736 1750 3395 5400 7620 10900

Cu 745 1960 3550 5690 7990 10500

Zn 908 1730 3828 5960 8280 11000

2.6 úúO TlaislrK wjia:d 2.3 j.=fjys oelafjk mßÈ Sc iy Zn yereKq fldg b;sß uQ,øjHhka ish,a,u úúO TlaislrK wjia:d fmkajhs' jvd;a fmdÿ TlaislrK wjia:d ;o meye;s b,lalñka olajd we;' Mn, +7 TlaislrK wxlh fmkajhs' d-f.dkqfõ uQ,øjH u.ska fmkajkq ,nk jeäu TlaislrK wjia:dj +8 jk w;r Ru8+ iy Os8+ WodyrK f,i oelaúh yel'


2016

2.7 c,Sh ixls¾Khkays j¾K

2.3 j.=j: 3d-uQ,øjHhkays ;sìh yels TlaislrK wxl

wdka;ßl f,dayhkays fndfydauhla ixfhda. j¾Kj;a fõ' f,day whk c,fha Èhù [M(H2O)6]

n+ fyda Mn+ (aq) wdldr c,Sh ixls¾K ,ndfoa'

Mn+ + 6 H2O ⎯→⎯ [M(H2O)6]n+

iuyrla c,Sh ixlS¾Khka ys j¾K my; § we;.

uQ,øjH TlaislrK wxl

-2 -1 0 +1 +2 +3 +4 +5 +6 +7

Sc (+2) +3

Ti (-1) (0) +2 +3 +4

V (-1) (0) (+1) +2 +3 +4 +5

Cr (0) (+1) +2 +3 (+4) (+5) +6

Mn (-1) (0) (+1) +2 +3 +4 (+5) +6 +7

Fe (-2) (0) (+1) +2 +3 (+4) (+5) (+6)

Co (-1) (0) (+1) +2 +3 (+4)

Ni (0) (+1) +2 (+3) +4

Cu +1 +2 (+3)

Zn +2


2016

c,Shf,day whkh j¾Kh

Sc3+^c,Sh& wj¾K

Ti3+^c,Sh& oï

V2+^c,Sh& oï

V3+^c,Sh& oï$fld<

Cr2+^c,Sh& ks,a

Cr3+^c,Sh& fld<$oï

Mn2+^c,Sh&

,d frdai

Mn7+^c,Sh&

oï fyda r;=

Fe2+^c,Sh&

,d fld<

Fe3+^c,Sh& ly $ ÿUqre

Co2+^c,Sh& ,d frdai

Co3+^c,Sh&

ks,a

Ni2+^c,Sh& fld<

Cu2+^c,Sh& ks,a

Zn2+^c,Sh& ks,a

2.8 W;afma%rl wdka;ßl f,day ixlS¾K W;afm%arl f,i jeo.;a ld¾hhla bgq lrhs' W;afm%arlhla hkq m%;sls%hdjl iS>%;djh jeä lrk iy mßj¾;kh wjidkfha § kej;;a m%;sW;amdokh jk øjHhls' W;afm%arlhla u.ska m%;sls%hdj i|yd fjk;a ud¾.hla Ndú;d lrhs' tu.ska ils%hk Yla;s ndOlh wvq lrhs' W;afmA%rl j¾. folls. iucd;Sh W;afma%rl ^m%;sls%hlhka tlu l,dmhl mj;S& iy úIucd;Sh W;afm%arl ^m%;sl%Shlhkays l,dmhg jvd fjkia jQ l,dmhl mj;S&. WodyrKhla f,i ødjKhla ;=< jQ wødjH >k W;afma%rl&. iuyrla W;afm%arl m%;sls%hd my; § we;' m%;sls%hd 1 isg 7 olajd úIucd;Sh W;afm%arl Ndú;d fldg we;' 1. NH3 ksmojk fyan¾ ls%hdj,sfha § W;afma%rlhla f,i hlv fyda Fe2O3 Ndú;d

lrhs'

N2(g) + 3 H2(g) ⎯→⎯ 2 NH3(g)


2016

2. SO2, SO3 njg TlaislrKh ^H2SO4 ksIamdokfhys iam¾Y l%ufhys& V2O5 u.ska W;afma%rKh lrhs'

2 SO2(g) + O2(g) ⎯→⎯ 2 SO3(g) 3. T,s*Sk yhsv%ckSlrKh ^Wod: ud.ßka ksIamdokfha §& i|yd W;afma%rlhla f,i

Ni Ndú;d lrhs'

RCH=CH2 + H2 ⎯→⎯ RCH2CH3

4. T,s*Sk nyq wjhúlrKh i|yd ^Wod t;s,ska fmd,st;s,Ska lsÍug& W;afma%rl f,i (TiCl3) iy (AlEt3) Ndú;d lrhs

n CH2=CH2 ⎯→⎯ -[CH2-CH2]n-

5. fnkaiSka fn%daókSlrKh ^*%Sâ,al%d*aÜ m%;sls%hdj& f*ßla fn%dauhsâ u.ska W;afm%arKh lrhs'

6. wod< vhfidakshï ,jK u.ska laf,dafrdafnkaiska ms<sfh, lsÍu i|yd CuCl

Ndú;d lrhs îekaâfuh¾ m%;sls%hdj&.

7. NH3, NO njg TlaislrKh ^HNO3 ksIamdokfha TiaÜj¾,aâ ls%hdj,sh& i|yd

W;afm%arlhla f,i ñY% f,day (Pt-Rh) Ndú;d lrhs'

4 NH3(g) + 5 O2(g) ⎯→⎯ 4 NO(g) + 6 H2O(g)

8. MnO2, my; m%;sls%hd W;afma%Kh lrhs'

(i) 2 H2O2(aq) ⎯→⎯ 2 H2O(l) + O2(g)

(ii) 2 KClO3(s) ⎯→⎯ 2 KCl(s) + 3 O2(g)

9. S2O8

− u.ska I−, I2 njg TlaislrKh f*ria whk W;afm%arKh lrhs'

S2O8−(aq) + 2 I−(aq) ⎯→⎯ 2 SO4

−(aq) + I2(g)

Br2

Br

+

Cl

Cl

N2+

+ + N2


2016

idrdxYh

• 3d-uQ,øjH ish,a,u fyd| ;dm iy úoHq;a ikakdhl fõ' úoHq;a ikakdhl;djh ksoyia bf,lafg%dak mej;Su u.ska Woa§mkh fõ'

• 3d-fYa%Ksfhys Sc isg V olajd øjdxl l%ufhka jeäjk w;r Fe isg Zn olajd

wvqfõ' • 3d-fYa%Ksfhys Sc isg Cu olajd >k;ajh jeä fõ' • 3d-fYa%Ksfhys Sc isg Cu olajd úoHq;a >DK;djh iq¿ jYfhka jeä fõ' • 3d-uQ,øjHhkays m%:u whkSlrK Yla;sh Sc isg Cu olajd iq¿ jYfhka jeä fõ' • Sc yd Zn yereKq fldg 3d-uQ,øjH úúO TlaislrK wjia:d fmkajhs' • fndfyduhla wdka;ßl f,day ixfhda. j¾Kj;a fõ. • wdka;ßl f,day ixls¾K W;afm%arl f,i jeo.;a ld¾hhla bgq lrhs. tajd

m%;sls%hdjl iS>%;djh jeä lrk w;r mßj¾;kh wjidkfha§ m%;sckkh fõ'

wruqKq fuu ieish wjidkfha §, my; ±lafjk mßÈ d-f.dkqfõ uQ,øjHhkays .=K idlÉPd lsÍug Tng yels úh hq;=h'

• 3d-f.dkqfõ uQ,øjHj, fN!;sl .=Kdx. tkï ikakdhl;djh, øjdxl yd ;dmdxl" úoaHq;a >DK;djh" whkSlrK Yla;sh" whksl wrh ieyeos,s lsrSu

• wdka;rsl uQ,øjHj, úúO TlaislrK wjia:d fiùu

• 3d-f.dkqfjs uQ,øjHj, c,Sh ixlS¾Khkays j¾Kh y÷kd.ekSu

• f,day ixlS¾Khkays W;afma%rl .=K


2016

ls%hdldrlu 2'1 3d-fYa%Ksfhys øjdxl úp,kh ms<sn|j woyia olajkak' 2'2 s-f.dkqfõ uQ,øjHhkays >k;ajhka iuÕ 3d-uQ,øjHhkays >k;aj ii|kak' 2'3 3d-uQ,øjHhkays úoHq;a >DK;djh jeäjk wkqms<sfj< ,shkak' 2'4 ksl,a iy fldm¾ys jvd;a fmdÿ TlaislrK wjia:d fudkjd o @ 2'5 3d-uQ,øjHhla fmkajkq ,nk jeäu TlaislrK wjia:dj l=ula o@ tjeks

ixfhda.hla i|yd WodyrK folla fokak 2'6 wj¾K c,Sh ixls¾Khla we;s lrkafka l=uk 3d-uQ,øjHh o @ 2'7 frdai meye;s c,Sh ixls¾Khla we;s lrkafka l=uk 3d-uQ,øjH legdhkh o @ 2'8 fyan¾ ls%hdj,sfha § Ndú;d jk W;afm%arlh l=ula o @ 2'9 ud.ßka ksIamdokh i|yd Ndú;d lrk W;afma%rlh l=ula o @


2016

3. wldnksl ixfhda. kdulrKh

ye¢kaùu

1 jk ieisfha § ix.; ixfhda.j, f,day-nkaO w;r wdl¾YKh iy tAjdfha

cHdñ;sh ms<sn|j wms W.;af;uq ix.; ixfhda.hkays uOH f,dayh nkaOj,ska jg ù we;s nj;a uOH f,dayfha ix.; iy TlaislrK wxl ks¾udK lrk wdldrh;a wms

oksuq fuu ixfhda. iy ixlS¾K legdhk$wekdhk kï lsÍug l%udkql+, l%uhla

;sîu jeo.;a h ix.; ixfhda.hl ku § we;s úg tys jHqyh we|Sug wmg yelsúh

hq;=h fuu ieisfha § ir, wldnksl ixfhda. iy ix.; ixfhda.hka kï lsÍfï

IUPAC kS;ska wm yodrkq we; ir, wldnksl ixfhda. kï lsÍu i,ld n,uq

31 ir, wldnksl ixfhda.

wï, NIau iy ,jK ir, wldnksl ixfhda. f,i ie,lsh yels h ødjKhl § tajd ir, legdhk iy wekdhk ñY%Khla ,nd foñka ú>gkh fõ

ir, wï,hla kï lsÍfï § wf,dayfha ^Wod: N, S, C) TlaislrK wxlh jryka ;=< fokq ,efí

m%( (a) HNO3 iy ^b) HNO2 ys IUPAC kï fokak ú>gkfha § ,efnk legdhk iy wekdhk fudkjd o@

ms( (a) khsá%la(V) wï,h iy (b) khsá%la(III) wï,h' HNO3ys N j, TlaislrK

wxlh +5 ^fyda V& jk w;r HNO2 ys N j, TlaislrK wxlh +3 ^fyda III) nj ie,lsh hq;= h

ú>gkfha § ,efnk legdhkh H+ jk w;r wekdhk NO3−iy NO2

−fõ

ir, ,jK kï lsÍfï § (i) m<uqj legdhkfha ku, f,dayfha TlaislrK wxlh ^jryka ;=<& iuÕ o (ii) wekdhkfha ku, wf,dayfha TlaislrK wxlh ^jryka ;=<& iuÕ o ,shkq ,efí


2016

m%( (a) FeSO4 iy (b) Fe2(SO3)3 ys IUPAC kï fokak ms( (a) whka(II) i,af*aÜ(VI) iy (b) whka(III) i,af*aÜ(IV). FeSO4 j, S ys

TlaislrK wxlh +6 ^fyda VI) o Fe2(SO3)3 ys Sj,, TlaislrK wxlh +4 ^fyda IV) o nj ie,lsh hq;=h legdhkfha ku iy wekdhkfha ku w;r ysia;ekla ;sìh hq;=h

legdhkh fyda wekdhkh tla TlaislrK wjia:djla muKla fmkakqï lrk

úg TlaislrK wxlh i|yka lsÍu wkjYH h Wod( Na+, Al+, NH4+iy

F− TlaislrK wjia:d 1 la muKla fmkajhs

m%( (a) NH4F, (b) NaHCO3, (c) (NH4)2CrO4 ys IUPAC kï fokak ms( (a) wefudakshï *af,darhsâ (b) fidaähï yhsv%ckaldnfkaÜ(IV) iy

(c) wefudakshï fl%dafïÜ(VI).

yhsv%cka yer legdhk ish,a, wldrd§ wkqms<sfj<g ,ehsia;=.; flf¾

ie'hq' wekdhkfha ku “whsâ” fyda “taÜ” m%;Hj,ska wjika úh hq;=hs. WodrK f,i

Cl− - laf,darhsâ CO3− - ldnfkaÜ

OH− - yhsfv%dlaihsâ SO4− - i,af*aÜ

N3− - khsg%hsâ CrO4

− - fl%dafïÜ

ls%hdldrlu

31 my; § we;s ir, wldnksl ixfhda.j, IUPAC kï fokak

(a) HClO (b) HClO3 (c) H3PO4

(d) KCl (e) NaOH (f) NaH

(g) Li3N (h) KNaCO3 (i) K2O

(j) K2MnO4 (k) K2Cr2O7


2016

32 ix.; ixfhda. ix.; ixfhda.hla uOHf,dayhla yd thg ne÷kq nkaOj,ska iukaú; jk nj wms oksuq' tfiau WodiSk ixfhda.hla fyda ixlS¾K whkhla ødjKhl Èhl< úg tys ix>gl njg ú>gkh fkdjk nj o wms oksuq' ^1 jk ieish n,kak& ix.; ixfhda./ixlS¾K whk j¾. ;=kls' WodyrKhla f,i

(i) WodiSk ixlS¾K Wod : [CoCl3(NH3)3], [CoH(CO)3] WodiSk ixlS¾Khl f,dayhg ne£ we;s tal wekdhksl nkaO ixLHdj f,dayfha TlaislrK wxlhg iudk fõ WodiSk ixfhda.hla ødjKhl Èh ùfï§ whkj,gfjka jkafka ke;'

(ii) ixlS¾K legdhk Wod : [V(NH3)6]3+, [Ag(NH3)2]

+

(iii) ixlS¾K wekdhk Wod: [CoCl4]−, [ZnCl4]− [MnO4]− ixlS¾K legdhkhla fyda wekdhkhla tu legdhkfha fyda wekdhkfha wdfrdamKh WodiSk lsÍu i|yd wekdhk fyda legdhk yjq,a lr.; hq;=fõ ix.; ixfhda. kï lsÍug fmr, nkaO j¾. iy tajdfha IUPAC kï ms<sn|j ie,lsh hq;= fõ

33 nkaO idudkHfhka ix.; ixfhda.j, yuqjk nkAO wdldr foj¾.hls' tajd kï"

(i) wekdhksl nkAO ^RK wdfrdams; nkAO& Wod: Cl−, SO4−

(ii) WodiSk nkAO Wod: CO, NH3

wekdhksl nkAO wekdhksl nkAOj, kï my; § we;' ix.; ixfhda. kï lsÍfï § wekdhksl nkAOj, kï “O” wlaIrfhka wjika fõ' ix.; mrudKqj ;o wl=frka olajd we;.


2016

O 2

2

O O

SO 3

2

SO

O

O

C2O 4

2CO 3

2

CO

O

O

SO4

2

C

OO

C

OO

S

O

O

O

O

nkaO IUPAC kduh nkaO IUPAC kduh

F− fluorido SO42− sulphato

Cl− chlorido S2O32− thiosulphato

Br− bromido SO32− sulphito

I− iodido CO32− carbonato

H− hydrido C2O42− oxalato

HO− hydroxido NH2− amido

NC-S− thiocyanato-κS NH2− imido

S=C=N− thiocyanato-κN N3− nitrido

O2N− nitrito-κN N3− azido

O=N-O− nitrito-κO CH3− methyl/ methanido

S2− sulfido CH3CH2− ethyl /ethanido

HS− sulfanido C6H5− phenyl

CH3O− methoxido N≡C− cyanido

CH3COO− acetato O22− peroxido

O2− oxido O2− superoxido

iuyr nkAOj, odhl mrudKqj u; tla iDK wdfrdamKhla muKla mj;sk nj oelsh yels w;r ^Wod : Cl−, H−, OH−hkd § f,i&tajd talwekdhksl nkaO (monoanionic) f,i y÷kajhs' fuu tal nkAOhka f,dayh iu`. tla ne£ula muKla we;s lr .kS'

SO42−, CO3

2−, C2O42−, SO3

2−iy O22−jeks iuyr nkAOj, odhl mrudKq folla u;

RK wdfrdamK folla mj;sk w;r fïjd oaúwekdhksl nkAO f,i y÷kajhs' fuu nkaOhkag uOH f,dayh iu`. ne£ï folla we;s lr .; yels w;r tajd oaúnkAO (bidentate) f,i y÷kajhs'


2016

WodiSk nkAO WodiSk nkAOj, kï my; § we;' ix.; mrudKqj ;o wl=ßka olajd we;'

nkAO IUPAC ku H2O aqua

NH3 ammine

CO carbonyl

NO nitrosyl

N2 dinitrogen

O2 dioxygen

CH3CN acetonitrile

CH3NH2 methylamine

34 IUPAC kS;s

IUPAC (International Union of Pure and Applied Chemistry) kS;shg wkqj wekdhksl iy iuyrla WodiSk nkAO kï lsÍu ms<sn|j wms by; § idlÉPd lf<uq mokï uÜgfï § jeo.;a jk IUPAC kS;s iuyrla my; § we;

^1& ,jKhla kï lsÍfï § m<uqj legdhkh o fojkqj wekdhkh o kï l< hq;=fõ

m%( [Ag(NH3)2]Br ys IUPAC ku fokak ms( Diamminesilver(I) bromide

[Ag(NH3)2]Br, hk ixfhda.h [Ag(NH3)2]+ legdhkfhka iy Br− wekdhkfhka iukaú; jk nj Tn okshs fuys § legdhkfha ku iy wekdhkfha ku w;r ysia;ekla ;sìh hq;=h “vhs” m%;Hfhka NH3 nkAO folla we;s nj fmkakqï flf¾

^2& ixlS¾K wKqjla$whkhla kï lsÍfï § nkAOj, wdfrdamKh fkdi,lk

w;r m<uqj nkAO wldrdÈ wkqms<sfj<g o bkamiqj f,dayfha ku o i|yka lrhs f,dayfha kug miqmiska tys TlaislrK wxlh frdau b,lalñka i|yka lrkq ,efí


2016

m%( [NiClBr(NH3)(CO)] ys IUPAC ku fokak ms( Amminebromidocarbonylchloridonickel(II)

fuys § nkAO wldrdÈ wkqms<sfj<g fm< .iajd we;s w;r tys TlaislrK wxlh jk

+2 ^fyda +II& jryka ;=< § we; ixlS¾K wKqfõ fyda whkfha kfuys lsisu ysia;ekla fkdue;s nj ie,lsh hq;=hs

^3& ixlS¾K wekdhk kï lsÍfï oS uOH f,dayfha ku ‘ate’ m%;Hfhka wjika flf¾ WodyrK f,i ialekaähï ialekavfkaÜ f,i o ghsfÜkshï ghsgfkaÜ f,i o fl%dañhï fl%dafïÜ f,i o kï lrhs

ixlS¾K legdhk fyda WodiSk ixlS¾K i|yd úfYaIs; wjika lsÍula

fkdue; ^1 yd 2 kS;s hgf;a § we;s WodyrK n,kak&

m%( [ZnCl4]2− ys IUPAC ku fokak'

ms( Tetrachloridozincate(II)

^4& tlu j¾.fha nkaO lsysmhla we;súg kug l,ska di, tri, tetra, penta, hexa,

hepta, octa, nona, deca .....hk m%;Hhka fhdod .kshs WodyrKhla f,i

ammine nkaO 2 la we;súg [(NH3)2] ku diammine úh hq;=h carbonyl nkaO 3 la we;ssúg [(CO)3] ku tricarbonyl úh hq;=h

chloride nkaO 4 la we;súg [(Cl)4] ku tetrachlorido úh hq;=h

m%( [CoCl3(NH3)3] ys IUPAC ku fokak ms( Triamminetrichloridocobalt(III)


2016

^5& nkaO wldrdos wkqms<sfj<g ieliSfï § l,ska fhdok m%;Hhka (prefix)

fkdi,lkq ,nhs

[CoFI2(NH3)3] = triamminefluoridodiiodidocobalt(III)

35 ixlS¾K legdhk iy WodiSk ixlS¾K kï lsßu

ir, ldnksl ,jK kï lrk wdldrh wms oksuq oeka wms IUPAC kS;shg wkql+,j ixlS¾K legdhk iy WodiSk ixfhda. lsysmhla kï lruq ixlS¾K legdhk iy WodiSk ixfhda. kï lsÍug jvd ixlS¾K wekdhk kï lsÍu fjkia nj u;l ;nd .; hq;=h ^36 fldgi n,kak&

m%( my; § we;s ixlS¾K legdhk$WodiSk ixlS¾Kj, IUPAC kï fokak

(a) [V(NH3)6]3+

(b) [MnBr(CO)5]

(c) [Fe(OH)(H2O)5]SO4

(d) [CoCl(CN)(NO2)(NH3)3]

ms: (a) Hexaamminevanadium(III) ion

(b) Bromidopentacarbonylmanganese(I)

(c) Pentaaquahydroxidoiron(III) sulfate(VI)

fmkagdwelajdyhsfv%dlaih‘fvdwhka(III) i,af*aÜ(VI) [Fe(OH)(H2O)5]SO4 hkq ,jKhls. fuu ixlS¾Kh kï lsÍfï § m<uqj legdhkfha ku ,shd bkamiqj ysia;ekela ;nd fojkqj wekdhkfha ku ,shkak.

(d) Triamminechloridocyanidonitrito-κN-cobalt(III)

g%hsweïókalaf,daÍfvdihkh‘fvdkhsg%h‘fgd-κN-fldafnda,aÜ(III)

36 ixlS¾K wekdhk kï lsÍu 35 jk fldgfia § ixlS¾K legdhk iy WodiSk ixfhda. kï lsÍu ms<sn|j wms wjOdkh fhduq l< w;r oeka wms ixlS¾K wekdhk kï lsÍu ms<sn|j i,ld n,uq IUPAC kS;shg wkqj ixlS¾K wekdhkhl uOH f,dayfha ku ‘ate’ m%;Hfhka wjika l< hq;=h


2016

m%( my; ixlS¾K wekdhkj, IUPAC kï fokak

(a) [TiCl5]−

(b) [VCl6]2−

(c) [MnO4]−

(d) [Fe(CN)6]4−

(e) [CoCl4]2−

(f) [Ni(CN)4]2−

(g) [CuI4]2−

ms(

(a) Pentachloridotitanate(IV) ion

(b) Hexachloridovanadate(IV) ion

(c) Tetraoxidomanganate(VII) ion

(d) Hexacyanidoferrate(II) ion

(e) Tetrachloridocobaltate(II) ion

(f) Tetracyanidonickelate(II) ion

(g) Tetraiodidocuprate(II) ion

idrdxYh

• ir, wï, kï lsÍfï § wf,dayhl TlaislrK wxlh ^Wod :N, S, C) jryka ;=< fokq ,efí

• ir, ,jK kï lsÍfï § m<uqj legdhkfha ku jryka ;=< f,dayfha TlaislrK wxlh iu`. o B<`.g wekdhkfha ku jryka ;=< wf,dayfha TlaislrK wxlh iu`. o ,shkq ,efí legdhkh fyda wekdhkh tla TlaislrK wjia:djla fmkajk úg TlaislrK wxlh Èh hq;= ke; wekdhkfha ku “ide” fyda “ate” m%;Hfhka wjika fõ

• ,jKhla kï lsÍfï § m<uqj legdhkh o fojkqj wekdhkh o ,shkq ,efí

• ixlS¾K wKqjla$whkhla kï lsÍfï § nkaOj, wdfrdamKh fkdi,lñka

wldrdÈ wkqms<sfj<g m<uqj i|yka lrk w;r miqj f,dayh o tys TlaislrK wxlh ^frdau b,lalñka& iu`. i|yka lrkq ,efí nkaO wldrdÈ wkqms<sfj<g ilia lsÍfï § fmr m%;H fkdi,lkq ,efí


2016

• ixlS¾K wekdhk kï lsÍfï § uOH f,dayfha ku “ate” m%;Hfhka wjika flf¾

• tlu nkaOhka lsysmhla we;súg di, tri, tetra, penta. hexa, hepta, octa, nona,

deca jeks m%;H ku iu`. Ndú;d flf¾

wruqKq fuu ieish wOHhkh l< miq my; oE isÿ lsÍug Tng yelsúh hq;=h

• ir, wldnksl ixfhda. kï lsÍu

• IUPAC kS;s meyeÈ,s lsÍu

• § we;s ix.; ixfhda.hl ixlS¾K legdhkhl fyda ixlS¾K wekdhkhl

IUPAC ku ,sùu

• ix.; ixfhda.hl IUPAC ku § we;s úg ridhksl iQ;%h ,sùu

ls%hdldrlu 32 “ixlS¾K legdhk” iy “ixlS¾K wekdhk” hkqfjka woyia jkafka l=ula o@

ta tl tlla i|yd WodyrK 3 ne.ska fokak

33 Co2+/Co3+ wefudakshd iy laf,darhsâ wvx.= wIaG;,Sh cHdñ;shla iys; ixlS¾K legdhk$wekdhkj, iQ;% ,shkak

34 my; È we;s ixfhda.$ixlS¾K whkj, IUPAC kï fokak

(a) Na2[Fe(CN)5NO]

(b) K3[Ag(S2O3)2]

(c) [Mn(CH3)(CO)5]

(d) [Fe(NCS)][CuCl4]

(e) NaFe[Fe(CN)6]

(f) K2Cu[Fe(CN)6]

(g) Fe4[Fe(CN)6]3


2016

35 my; tla tla ixfhda.hkays ridhksl iQ;% fokak'

(a) Triaquadinitrito-κN-nitrito-κO-cobalt(III)

(b) Potassium hexacyanidonickelate(II)

(c) Ammonium hexachloridoplatinate(IV)

(d) Dibromidotetraammineplatinum(IV) nitrate

(e) Potassium tetrafluoridooxidochromate(V)

(f) Dichloridodi(methylamine)copper(II)


2016

4. 3d-uQ,øjHhkays m%;sls%hd

ye|skaùu 1 jk yd 2 jk ieishkays § d-f.dkqfõ uQ,øjHhkays uQ,sl ixl,am iy fN!;sl .=K ms<sn|j wms idlÉPd lf<uq' 3 jk ieisfha § ix.; ixfhda.hkays kï ,shk wdldrh ms<sn|j W.;af;uq' fuu ieisfha § 3d-uQ,øjHhkays iuyrla uQ,sl m%;sls%hd ms<sn|j úfYaIfhkau" c,h" jd;h ^Tlaiscka&" ye,ck" fmdÿ wï, iy NIau iuÕ tajdfha m%;sls%hd ms<sn|j i,lkq ,efí' s-f.dkqfõ uQ,øjH fuka fkdj d-f.dkqfõ uQ,øjHhka úúO TlaislrK wjia:d fmkajk w;r j¾Kj;a ixfhda. we;s lrhs'

4.1 c,h iuÕ m%;sls%hd jeäu úoHq;a Ok laIdr f,day c,h iuÕ m%pKav f,i m%;sls%hd fldg yhsv%cka iy f,day yhsfv%dlaihsâ ,ndfok nj wms oksuq' jeä úoHq;a Ok;djla we;s Ca, Sr iy Ba jeks laIdÍh mdxY= f,day c,h iuÕ fiñka m%;sls%hd lr yhsv%cka iy f,day yhsfv%dlaihsâ ,nd fohs' kuq;a ldur WIaK;ajfha § fnrs,shï iy ue.akSishï c,h iuÕ m%;sls%hd fkdlrhs' ghsfÜkshï f,dayh Tlaihsv mg,hlska wdjrKh ù we;s w;r tu.ska th wlsS%hj ;nhs' kuq;a Ti yqud,h iuÕ m%;sls%hd lr ghsfÜkshï(IV)

Tlaihsâ (TiO2) iy yhsv%cka ,ndfoa' hlv f,day u; jdhq rys; c,h iq¿ n,mEula we;s lrk kuq;a th f;; jd;fha § TlaislrKh ù ic, hlv Tlaihsvh ,ndfohs' fuu hlv mDIaGh ;j ÿrg;a m%;sls%hd ùu fkdj<lajk w;r Tlaihsvh len,s f,i fjka ùuksid hlv f,dayh ;jÿrg;a TlaislrKh ùu i|yd ksrdjrKh lrhs' fuu ls%hdj,sh u,lEu$u,skùu (rusting) f,i yÿkajhs' hlv iy iskala, yqud,h iu`. m%;sls%hd lr wod< f,day Tlaihsvh iy yhsv%cka my; oelafjk f,i ,nd fohs'

Ti(s) + 2 H2O(g) ⎯→⎯ TiO2(s) + 2 H2(g)

3 Fe(s) + 4 H2O(g) ⎯→⎯ Fe3O4(s) + 4 H2(g)

Zn(s) + H2O(g) ⎯→⎯ ZnO(s) + H2(g) idudkH ;;ajhka hgf;a § jefkaähï" fl%dañhï" ksl,a" fldfnda,aÜ iy iskala c,h iuÕ m%;sls%hd fkdlrhs' fldm¾ (Cu), is,aj¾ (Ag), r;arka (Au) iy ma,eákï (Pt) jeks wdka;ßl f,day yqud,h fyda c,h iuÕ m%;sls%hd fkdlrhs'

c,Sh ixlS¾K wdka;ßl f,day ,jK c,fha Èh ù c,Sh ixlS¾K fok w;r" c, wKqfõ Tlaiscka odhl mrudKqj f,i ls%hd lrhs' oaú ixhqc (M2+) iy ;S% ixhqc (M3+) wdka;ßl f,day [M(H2O)6]n+ wdldrfha wIag;,Sh c, wKq 6 la iys; (fylaidwelajd) ixlS¾K we;s lrhs (n = 2, 3; M = Cr, Mn, Fe, Co, Ni, Cu, Zn). Wod: [Fe(H2O)6]Cl3, [Mn(H2O)6]Cl2


2016

iy [Cu(H2O)6]SO4. [M(H2O)4]n+ c, wKq y;rla iys; ixlS¾K (fgÜrdwelajd ixlS¾Kh) o mj;S.

ls%hdldrlu

4.1 hlv u, ne|Su hkqfjka woyia jkafka l=ula o@ fuu ls%hdj,sfha § we;sjk hlvwvx.= ixfhda. fudkjd o@

4.2 Tlaiscka iuÕ m%;sls%hd ishü laIdr f,day" Tlaiscka iuÕ m%;sls%hd lrk nj wms oksuq' 3d-uQ,øjH iu`. Tlaiscka m%;sls%hd fldg f,day Tlaihsv we;s lrhs' Tlaihsvfha ixhq;sh f,dayfha TlaislrK wjia:dj u; r|d mj;S' jd;fha § ialekaähï f,dayh u,sk jk w;r Tlaiscka ;=< § myiqfjka oykh ù ialekaähï(III) Tlaihsv ^Sc2O3)we;s fõ' ghsfÜkshï o Tlaiscka ;=< oykh ù iqÿ meye;s oe,a,la iy ghsfÜkshï vhsTlaihsâ ,nd foa' r;a lsÍfï § jefkaähï f,day jeämqr Tlaiscka yd m%;sls%hd fldg jefkaähï(V) Tlaihsâ ^V2O5) ,nd foa' fuh wfkl=;a jefkaähï Tlaihsâ iuÕ ixfhdackh úh yelsh' jefkaähï" Tlaihsv y;rla we;s lrk nj ie,lsh hq;= fõ ^j.=j 4.1&' ldur WIaK;ajfha § fl%dañhï f,dayh jd;h fyda Tlaiscka iuÕ m%;sls%hd fkdlrk kuq;a by< WIaK;ajj, § Cr2O3 ,ndfoa' uex.kSia wdj¾;s;d j.=fjys tys wi,ajeis uQ,øjHhkag jvd úoHq;a Ok;djfhka jeä kuq;a jd;hg tfrysj m%;sls%hdYS,s fkdfõ' uex.kSia" Tlaiscka ;=< oykh ù Mn3O4 ,ndfoa' WodyrK lsysmhla my; § we;'

4 Sc(s) + 3 O2(g) ⎯→⎯ 2 Sc2O3(s)

4 V(s) + 5 O2(g) ⎯→⎯ 2 V2O5(s)

4 Cr(s) + 3 O2(g) ⎯→⎯ 2 Cr2O3(s)

4 Cu(s) + O2(g) ⎯→⎯ 2 Cu2O(s)

M

H2O

H2O OH2

OH2

OH2

OH2

n+

[M(H2O)6]n+


2016

ls%hdldrlu

4.2 uex.kSia Tlaiscka ;=< oykh ù Mn3O4 ,nd foa' fuu m%;sls%hdj i|yd ;=,s; iólrKh ,shkak.

3d-uQ,øjHhkays okakd f,day Tlaihsv my; 4.1 j.=fjys § we;' Ti, V, Cr iy Mn

oajHdx.S (divalent) f,day Tlaihsv ;=kla fyda y;rla idok nj Tng yeÕS hkq we;' f,dayfhys wju iy Wmßu TlaislrK wjia:d ms<sfj<ska +1 yd +7 fõ'

j.=j 4.1 3d-uQ,øjHhkays ir, f,day Tlaihsv

ls%hdldrlu

4.3( 4.1 j.=fõ oelafjk V ys Tlaihsv y;frys TlaislrK wxl ,shkak'

4.3 ye,ck iu. m%;sls%hd d-f.dkqfõ uQ,øjH s- yd p-f.dkqfõ uQ,øjH fuka ye,ck iuÕ ls%hd lr f,day ye,ck idohs' WodyrKhla f,i Sc ye,ck ^F2 , Cl2 , Br2 iy I2& iuÕ iS>%fhka m%;sls%hd lr oykh ù ScF3, ScCl3, ScBr3 iy ScI3 hk g%hs fya,hsv idohs'

2 Sc(s) + 3 X2(g) ⎯→⎯ 2 ScX3(s) (X = F, Cl, Br, I)

ghsfÜkshï o WKqiqï ;;a;aj hgf;a tf,i u ls%hdlr ghsfÜkshïÎV) fya,hsv idohs' TiF4(s) (iqÿ), TiCl4(l) (wj¾K), TiBr4(s) (;eô,s) iy TiI4(s) (;o ÿUqre). *af,daÍka iu. m%;sls%hd ùug 200 oC g by< WIaK;ajhlg r;a lsÍug wjYH fõ'

Ti(s) + 2 X2 ⎯→⎯ TiX4 (X = F, Cl, Br, I)

Sc Ti V Cr Mn Fe Co Ni Cu Zn O.N.

Cu2O +1

TiO VO MnO FeO NiO CuO ZnO +2

Sc2O3 Ti2O3 V2O3 Cr2O3 Mn2O3 Fe2O3 Co3O4 +3

TiO2 VO2 CrO2 MnO2 NiO2 +4

V2O5 +5

CrO3 +6

Mn2O7 +7


2016

fl%dañhï f,dayh iu`. ye,ck idudkH ;;ajhka hgf;a ls%hdlr fl%dañhïÎII) fya,hsv idohs' Wod: CrF3(s) (fld<), CrCl3(s) (r;=-oï), CrBr3(s) (b;du;a ;o fld<)

iy CrI3(s) (b;du;a ;o fld<).

2 Cr(s) + 3 X2 ⎯→⎯ 2 CrCl3(s) (X = F, Cl, Br, I) fl%dañhï f,dayh *af,daÍka iu. 400 oCiy jdhqf.da, mSvk 200-300 w;r m%;sls%hdlr fl%dañhï^VI) *af,darhsâ" CrF6 (ly& idohs' r;= fl%dañhï^V) *af,darhsâ" CrF3;a y÷kdf.k we;. 3d-uQ,øjHj, *af,darhsv 4.2 j.=fjys olajd we;' Ni, Cu iy Zn vhs*af,darhsv idohs' Fe iy Co vhs*af,darhsv iy g%hs*af,darhsv hk folu idohs'

Sc Ti V Cr Mn Fe Co Ni Cu Zn O.N.

VF2 CrF2 MnF2 FeF2 CoF2 NiF2 CuF2 ZnF2 +2

ScF3 TiF3 VF3 CrF3 MnF3 FeF3 CoF3 +3

TiF4 VF4 CrF4 MnF4 +4

VF5 CrF5 +5

CrF6 +6

4.2 j.=j( 3d-uQ,øjHj, *af,darhsv

4.4 wï, iuÕ m%;sls%hd 3d-uQ,øjH fndfyduhla Lksc wï, ^wldnksl wï,& iuÕ m%;sls%hd lrhs' ialekaähï f,dayh ;kql yhsv%laf,daßla wï,fhys myiqfjka Èh ù yhsv%cka jdhqj ^H2) iy ic, Sc(III) whk wvx.= ødjK ,nd foa' Tn okakd mßÈ ic, Sc(III) whk fyda Sc3+^c,Sh&" [Sc(OH2)6]3+ hk ixlS¾K whkh f,i mj;S'

2 Sc(s) + 6 HCl(aq) ⎯→⎯ 2 Sc3+(aq) + 6 Cl−(aq) + 3 H2(g) wfkl=;a f,day o fuf,iu m%;sls%hd fldg yhsv%cka iy wod< ,jKh my; oelafjk f,i ,nd foa'

Cr^s& + 2 HClâq& ⎯→⎯ Cr2+âq& + 2 Cl−âq& + H2^g&

Fe^s& + 2 HClâq& ⎯→⎯ Fe2+âq& + 2 Cl−âq& + H2^g&

Co^s& + 2 HClâq& ⎯→⎯ Co2+âq& + 2 Cl−âq& + H2^g&

Cu^s& + H2SO4âq& ⎯→⎯ Cu2+(aq& + 2 SO42−âq& + H2(g&

fldfnda,aÜ f,dayh ;kql i,a*shqßla wï,fhys fiñka ødjKh ù H2 iy ic, Co(II) whk wvx.= ødjKhla ,nd foa'


2016

hlv f,dayh ;kql i,a*shqßla wï,fhys Tlaiscka ke;s úg myiqfjka Èh ù ic, Fe(II) whkh iuÕ H2 wvx.= ødjKhla ,nd foa' Tlaiscka we;s úg iuyrla Fe(II),

Fe(III) njgTlaislrKh fõ'

Fe(s) + H2SO4(aq) ⎯→⎯ Fe2+(aq) + SO42−(aq) + H2(g)

;kql c,Sh yhsv%*af,daßla wï,h (HF) ghsfÜkshï iuÕ m%;sls%hd lr ixls¾K wekdhkh [TiF6]3− iy yhsv%cka ^H2) ,nd foa'

2 Ti(s) + 12 HF(aq) ⎯→⎯ 2 [TiF6]3−(aq) + 3 H2(g) + 6 H+(aq)

idudkH WIaK;ajfha § ghsfÜkshï f,dayh Lksc wï, yd m%;sls%hd fkdlrk kuq;a WKq yhsv%laf,daÍla wï,h yd m%;sls%hd lr ghsfÜkshï(III) ixlS¾K idohs' ir, ,jK iuÕ wï,hkays m%;sls%hd

ir, oaúixhqc yd ;s%ixhqc wdka;ßl f,day ,jK idkaø wï,j, (HX) Èhù [MX4]− fyda [MX4]− wdldrfha p;=ia;,Sh ixlS¾K wekdhk ,nd foa'

WodyrK lsysmhla my; oelafõ'

CuCl2(s) + 2 HCl(aq) ⎯→⎯ [CuCl4]2−(aq) + 2 H+(aq)

MnCl2(s) + 2 HCl(aq) ⎯→⎯ [MnCl4]2−(aq) + 2 H+(aq)

CuCl2 , laIdr f,dayhkays laf,darhsv iuÕ m%;sls%hdfjka o [CuCl4]2- ksmoúh yel' Wod(

CuCl2 (s) + 2 KCl(aq) ⎯→⎯ K2[CuCl4](aq) c,h iuÕ ;kql lsÍfï § [CuCl4]2- whkh" ks,a meye;s c,Sh ixls¾K whkhla jk [Cu(H2O)6]2+ njg mßj¾;kh l< yelsh'

[CuCl4]−(aq) + 6H2O(l) ⎯→⎯ [Cu(H2O)6]2+(aq) + 4Cl−(aq)

ly ks,a

Cl

M

ClCl

Cl

−

M = Cu, Zn

[MCl4]−


2016

4.5 NIau iuÕ m%;sls%hd idudkHfhka 3d-uQ,øjH NdIañl ødjKhkag tfrysj m%;sls%hdYS,S fkdfõ' ialekaähï NaOH iuÕ m%;sls%hd fldg Na3[Sc(OH)6] iy yhsv%cka ,nd foa'

2 Sc(s) + 6 NaOH(aq) + 6 H2O(l) ⎯→⎯ 2 Na3[Sc(OH)6] + 3 H2(g)

ghsfÜkshï idudkH ;;a;aj hgf;a § fyda r;al< úg fyda NIau iuÕ m%;sls%hdjla fkdfmkajhs' jefkaähï f,dayh øj jQ f,day yhsfv%dlaihsvhkag m%;sfrdaë fõ' ksl,a c,Sh fidaähï yhsfv%dlaihsv iuÕ m%;sls%hd fkdlrhs' c,Sh wefudakshd fyda NaOH iuÕ ir, ,jKhkays m%;sls%hd

CrCl3(aq& + jeämqr NH3âq& ⎯→⎯ [Cr(NH3)6]Cl3âq& ôï&

Cu2+(aq& + 4 NH3âq& ⎯→⎯ [Cu(NH3)4]2+âq& ^;o ks,a&

NiSO4(aq& + 4 NH3âq& ⎯→⎯ [Ni(NH3)4]SO4âq& ^ks,a&

ZnO, c,Sh NaOH ys osh ù Na2[Zn(OH)4] ,nd foaa'

ZnO + 2 NaOH + H2O ⎯→⎯ Na2[Zn(OH)4] wdka;ßl f,dayhkays fndfyduhla c,Sh ixlS¾K" NaOH fyda c,Sh NH3 iuÕ m%;sls%hd fldg wod< f,day yhsfv%dlaihsvh wjlafIam lrjhs' WodyrKhla f,i

CrCl3(aq) + 3 NH3(aq) ⎯→⎯ Cr(OH)3(s) ↓(ks,g yqre fld<& + 3 NH4Cl(aq)


2016

CrCl3(aq) + 3 NaOH(aq) ⎯→⎯ Cr(OH)3(s) ↓ + 3 NaCl(aq)

ZnSO4(s) + 2 NH3(aq) + 2 H2O(l) ⎯→⎯ Zn(OH)2(s)↓ + (NH4)2SO4(aq)

Zn(OH)2(s) + excess NH3(aq) ⎯→⎯ [Zn(NH3)4]2+(aq) + 2 OH−(aq)

idrdxYh

• úoHq;a Ok;djh wêl laIdr f,day, c,h iuÕ m%pKav f,i m%;sls%hd fldg yhsv%cka iy f,day yhsfv%dlaihsâ ,nd fohs'

• wdka;ßl f,day ,jK" c,fhys Èh ù c,Sh ixlS¾K fok w;r c, wKqfõ

Tlaiscka odhl mrudKqj f,i ls%hd lrhs'

• Tlaiscka iuÕ 3d-uQ,øjH" m%;sls%hd fldg f,day Tlaihsv we;s lrhs' Tlaihsvfha ixhq;sh f,dayfha TlaislrK wjia:dj u; r|d mj;S.

• s- iy p-f.dkqj, uQ,øjH fuka 3d-uQ,øjH ye,ck iuÕ m%;sls%hd lr f,day

fya,hsv ,ndfohs' fya,hsvfha ixhq;sh" f,dayfha TlaislrK wjia:dj u; r|d mj;S. WodyrKhla f,i" ialekaähï ms<sfj<ska ScF3 , ScCl3 , ScBr3iy ScI3

hk g%hsfya,hsv we;s lrhs'

• fndfyduhla 3d-uQ,øjH" Lksc wï, yd m%;sls%hd lrhs'

• Wod" ialekaähï f,day" ;kql yhsv%laf,daßla wï,fhys myiqfjka Èh ù ic, Sc(III) whk iy yhsv%cka jdhqj ,nd foa'

• wdka;ßl f,dayhkays fndfyduhla c,Sh ixlS¾K, c,Sh NaOH fyda c,Sh

NH3 iuÕ m%;sls%hd lr wod< f,day yhsfv%dlaihsv wjlafIamh ,ndfohs'

wruqKq fuu ieish wjidkfha oS Tng my; oE lsßug yelshdj ;sìh hq;=h' c,h" Tlaiscka" ye,ck" wï, iy NIau iu. wdka;ßl f,day" m%;sls%hd lrk ;;a;ajhka iy M, ms<sn|j úia;r lsrSug


2016

ls%hdldrlu 4.4 ghsfÜkshïys oajHdx.S Tlaihsv ;=fkys wKql iQ;% ,shkak' ghsfÜkshï f,dayh

yqud,h yd m%;sls%hd fldg ksmojkafka l=uk ghsfÜkshï Tlaihsvh o@ 4.5 yqud,h iuÕ m%;sls%hd fkdlrk wdka;ßl f,day ;=kla kï lrkak' 4.6 tla wdldrhl f,day Tlaihsv muKla we;slrk 3d-uQ,øjH fol fudkjd o@ 4.7 M2O wdldrfha f,day Tlaihsvh we;slrk 3d-uQ,øjHh l=ula o@ 4.8 M2O5 wdldrfha f,day Tlaihsvh we;slrkafka l=uk 3d-uQ,øjHh o@ 4.9 M2O7 wdldrfha f,day Tlaihsvh we;slrkafka l=uk 3d-uQ,øjHh o@


2016

5. wdka;ßl f,day ksiaidrKh iy m%fhdack ye|skaùu

1 isg 4 olajd ieishkays § d-f.dkqfõ uQ,øjHhkays ridhkh ms<sn|j tajdfha fN!;sl ridhksl iy W;afma%rl .=K iy f,day ixlS¾K kdulrKh hkdÈh wdjrKh jk mßÈ wms idlÉPd lf<uq. wdka;ßl f,day jeo.;a ld¾hka rdYshla bgq lrhs. WodrKhla f,i ñksid ;=< Tlaiscka mßjykh lrk hlv wvx.= ySï (Haem) tallh. Ôj moaO;sh ;=< yuqjk tkaihsuj, ls%hdldÍ fldgfiys (active sites)

fndfyduhla 3d-uQ,øjH wvx.= fõ. úgñka B12 j, fldfnda,aÜ whkhla wka;¾.;h. fuu ieisfha § wdka;ßl f,day ksiaidrKh i|yd Ndú;d lrkq ,nk l%u iy tajdfha m%fhdack ms<sn|j fláfhka wOHhkh lrkq ,nk w;r hlv iy fldm¾ ms<sn|j úfYaI wjOdkhla fhduq lrkq ,efí.

5.1 meje;au mDÓú lfndf,a jvd;a nyq, 3d-uQ,øjHh hlv (Fe) fõ. th uq¿ lfndf,ys ixhq;sfhka 6% la muK fõ. B<Õg jvd;a nyq, 3d-uQ,øjH jkqfha ghsfÜkshï (0.6%) iy uex.kSia (0.1%) fõ. b;sß uQ,øjHhka (V, Cr, Co, Ni iy Cu) úr, jk w;r iq¿ jYfhka me;sÍ we; (0.01% jvd wvqfjka). 3d-uQ,øjHhka fndfyduhla mj;skafka tajdfha Tlaihsv" c,Sh Tlaihsv" ldnfkag" i,af*ag iy wdifkag f,i h' 3d-uQ,øjHhkays uQ,sl Lksc iy wfkl=;a m%Nj j.=j 5.1 ys § we;.

5.1 j.=j( 3d-uQ,øjHhkays uQ,sl Lksc iy wfkl=;a m%Nj

uQ,øjHh Lksc m%Nj

Sc Thortveitite ScSi2O7

Ti Rutile TiO2, ilmenite FeTiO3

V Partronite (complex sulphide); vanbadinite Pb5(VO4)3Cl; camotite K(OU2)VO4•1.5H2O

Cr Chromite FeCr2O4; crocoite PbCrO4; chrome ochre Cr2O3

Mn Silicate; pyrolusite MnO2; hausmannite Mn3O4; rhodochrositeMnCO3

Fe Haematite, Fe2O3; magnetite Fe3O4. limonite FeO(OH); sideriteFeCO3; pyrites FeS2

Co Smallite CoAs2; cobailite CoAsS; linnaeite Co3S4; in association withNi in arsenic-containing

ores

Ni Laterites such as gamierite (Ni,Mg)6Si4O10(OH)8 and nickeliferrous limonite

(Fe,Ni)O(OH)nH2O; garnierte (Ni, Mg)6Si4O10(OH)8; sulphides such as pentlandite (Ni,Fe)9S8;

associated with Cu, Co andother precious metals in combination with As, Sb and S

Cu Chalcopyrite CuFeS2; copper glance or chalcolite Cu2S; cuprite Cu2O;malachite Cu2CO3(OH)2

Zn Zinc blende ZnS; smithsonite ZnCO3


2016

mDÓú lfndf,ys 3d-uQ,øjHhkays nyq,;djh 5.2 j.=fjys § we;.

5.2 j.=j: mDÓú lfndf,ys 3d-uQ,øjHhkays nyq,;djh

uQ,øjH nyq,;djh uQ,øjH nyq,;djh

O 46 Cl 0.1

Si 28 Cr 0.04

Al 8.1 C 0.03

Fe 5.1 V 0.02

Ca 3.6 Ni 0.008

Na 2.9 Cu 0.007

K 2.6 Co 0.002

Mg 2.1 Pb 0.001

Ti 0.6 Sc 0.0005

Mn 0.1 Zn 0.0001

uQ,øjH nyq,;djh mDÓú lfndf,ys jvd;a nyq,j mj;sk uQ,øjHhka jkqfha Tlaiscka" is,slka iy we¨ñkshï h. mDÓú lfndf,ys mj;sk jvd;au nyq, s-f.dkqfõ uQ,øjHhka jkqfha Ca, Na, K iy Mg h. Ca, K, Na iy Mg, ñksia isrefrys mj;sk jvd;au iq,N f,day fõ.

m%( ñksia isrefrys we;s jvd;a nyq, uQ,øjH y;r fudkjd o @ ms( H, O, C iy N


2016

5.2 ksiaidrK l%u wdka;ßl f,day m%Odk jYfhka mj;skafka i,a*hsv iy Tlaihsv f,i h' m%;sls%hdYS,S nfjka wvq (Wod: Cu, Au, Pt) uQ,øjH ixfhdackh fkdjQ uQ,øjH f,i mj;S' f,day ksê TlaisyrKh lsÍug ldnka fyda ldnka fudfkdlaihsâ fyda yhsv%cka fyda m%;sls%hdYS,s f,day my; oelafjk wdldrhg fhdod .; yel.

MO(s) + C(s) ⎯→⎯ M(s) + CO(g)

MO(s) + CO(g) ⎯→⎯ M(s) + CO2(g)

MO(s) + H2(g) ⎯→⎯ M(s) + H2O(l)

TiCl4(l) + 2 Mg(s) ⎯→⎯ Ti(s) + 2MgCl2(s) f,day ksiaidrKh i|yd my; i|yka mshjr Ndú;d lrhs' 1 hï f,dayhla, tys ksêfhka ksiaidrKh lsÍfï m<uq mshjf¾ § ksêh idkaø

lsÍu isÿ lrkq ,nhs. wkjYH mdIdK wdÈfhka ksêh fjkalsÍu i|yd úúO ls%hdj,s Ndú;d lrkq ,efí. iuyr wjia:djkays § bmsü (flotation) Ndú;d lrk w;r fuys § c, Odrdjka u.ska iqkanqka (debris) msg;g hjkq ,nk w;r >k ksêhla b;sß lrhs.

2 i,a*hsv ksê, wod< Tlaihsv njg m;alsÍug idudkHfhka tajd mq¿iaikq

,efí. 3 ixY=oaO ksê ^f,day Tlaihsv fyda fya,hsv& f,day njg TlaisyrKh l<hq;=

fõ. Tlaisydrlh (Wod: C, CO, H2, Al wdÈh) f;dard .ekSu wd¾Ól ;;a;ajh fukau ridhksl idOl uÕska o md,kh jk w;r wjYH f,day ixY=oaO;djh u; o r|d mj;S.

4 Tlaisydrlh f,i fldala Ndú;d lsÍfï § m%Odk wmøjH f,i ldnka mj;S.

ldnka bj;a lsÍu, wixY=oaO f,dayh jdhq Odrdjla ;=< r;a lsÍfuka isÿ lrkq ,efí. ;jÿrg;a msßisÿ lsÍu úoHq;a úÉfþokh u.ska isÿlr .; yels h (Wod: Cu, Ag, Cr wdÈh).

hlv ksiaidrKh hlv hkq jvd jeo.;a f,day w;ßka tlls. th iajNdjfha § Tlaihsv fyda i,a*hsv f,i mj;S. WodyrK f,i ysughsÜ Fe2O3; ue.akghsâ Fe3O4 iy whka mhsrhsÜia FeS2. hlv Tlaihsv, ldnka fudfkdlaihsâ u.ska TlaisyrKh lsÍfuka hlv ,nd.; yelsh. hlv ksêj, ySughsÜ Fe2O3wvx.= fõ. Fe2O3, Fenjg TlaisyrKh ldnkafudfkdlaihsâ u.ska 800-2000 oC jeks wêl WIaK;ajj,§ Odrd W!Iaulhla (blast furnace) ;=<§ isÿ flf¾.

Fe2O3(s) + 3 CO(g) ⎯→⎯ 2 Fe(s) + 3 CO2(g)


2016

wuq hlv ^fldala& iy , C CaCO3

Kqiqï jdhq msgùu

W Kqiqï jdhq msgùu

W

Kqiqï jd;hwe;=¿ ùu

WKqiqï jd;hwe;=¿ ùu

W

øj hlv øj wmøjH

5.1 rEmh( Odrd W!Iaulh ;=< uQ,sl mshjr7 yqKq.,a, fldala iy hlv m%Njhka wvx.= ñY%Khla iuÕ W!Iaulh wdfrdamKh lr.kq ,efí. W!Iaulfha my<ska mSvkhla hgf;a jd;h we;=,a lrkq ,efí. fuys § fldala Tlaiscka iuÕ ixfhdack ù CO ksmojkq ,efí. fuh ;dmodhl ls%hdj,shla jk w;r W!Iaulfha ls%hdj,sh mj;ajd .ekSu i|yd wjYH Yla;sh iemhSu i|yd fuh wdOdr fõ. CaO ckkh i|yd yqKq.,a tl;= lsÍfï fya;=j'

CaCO3(s) CaO(s) + CO2(g) ksêfhys wvx.= is,sld iuÕ CaO m%;sls%hd ù øj CaSiO3 ksmojk w;r th W!Iaulfha my<ska bj;a flf¾.

CaO(s) + SiO2(s) ⎯→⎯ CaSiO3(l)

øj whka W!Iaulfhka bj;g f.k wÉpq (moulds) ;=<g jd;a;= l< yelsh. th msßisÿ fkdjk neúka th “wuq hlv” (pig iron) f,i y÷kajhs. idudkHfhka fndfyduhla øj hlv jdfka njg m;a flf¾. fuh wixY=oaO øj hlv ;=<ska Tlaiscka heùfuka isÿ lrkq ,efí. Tlaiscka u.ska ldnka iy fmdiamria jeks wmøjH tajdfha Tlaihsv njg TlaislrKh lrk w;r øj hlv fj;ska jdhq fyda f,dafndr fj;g wjfYdaIKh lrùfuka bj;a lrkq ,efí. hlv ;=< ldnka wvx.= m%udKh u.skahlvj, iajNdjh ks¾Kh lrhs.

⎯→⎯


2016

fldm¾ ksiaidrKh fldm¾ys fmdÿfõ oelsh yels ksêh “le,fld*hsrhsÜ” (Chalcopyrite) (CuFeS2) fõ. m%Odk l%u folla u.ska fldm¾ ksiaidrKh l< yelsh.

1 ;dm f,day ld¾ñl l%uh - i,a*hsv ksêj,ska ksiaidrKh 2 øj f,day ld¾ñl l%uh -

øj ksiaidrKh îxlS¾K ldrlhla Ndú;fhka Cu2+ whk idkaø lsÍu& iy bkamiqj isÿlrkq ,nk úoHq;a úÉfþokh u.ska ridhksl ødjKhlska (Cu2+) fldm¾ ,nd.ekSu. ;dm f,day ld¾ñl l%uh i,a*hsv ksêj,ska fldm¾ ksiaidrKh m%Odk mshjr y;rlska iukaú; fõ.

i leKSu ^wuqøjH yEÍu iy tla/ia lsÍu, mining& ii. weUÍu ^wkjYH øjH bj;afldg wuqøjH weUÍu, grinding& iii. úreùu (smelting)

iv. Y=oaO lsÍu (refining) úreùu idkaø lrk ,o ksêh is,slka vfhdlaihsâ îs,sld& iy jd;h ^fyda Tlaiscka& iuÕ W!Iaulhl fyda W!Iaul fY%aKshla ;=< m%n, f,i r;alrkq ,efí. le,afldmhsrhsÜ ;=< we;s fldm¾(II) whk, fldm¾(I) i,a*hsâ njg ;jÿrg;a TlaisyrKh fõ' ^wjidk wÈhf¾ § fuh fldm¾ f,dayh(Cu) njg ;jÿrg;a TlaisyrKh fõ&. fuu ls%hdj,sfha §s le,afldmhsrhsÜys we;s hlv ^whka& bj;a lrkq ,nk w;r whka(II) is,sflaÜ f,dafndr njg mßj¾;kh flf¾. le,afldmhsrhsÜ ;=< we;s fndfyduhla i,a*¾ i,a*¾vfhdlaihsâ jdhq njg m;a fõ. fuh iam¾Y ls%hdj,sh u.ska i,a*shqßla wï,h ksmoùu i|yd Ndú;d lrhs. Y=oaO lsÍu by< ;;a;ajfha fldm¾ ,nd .ekSu i|yd úoHq;a ridhksl l%u u.ska isÿ lrk ls%hdj,sfhys wjidk wÈhr fuh fõ. fuu mshjr fY%aKsh i|yd iïmq¾K iólrKh my; § we;.

2 CuFeS2 + 2 SiO2 + 4 O2 ⎯→⎯ Cu2S + 2 FeSiO 3+ 3 SO2 ksmojk ,o fldm¾(I) i,a*hsv wjidk jdhq Odrdj u.ska fldm¾ njg m;a lrhs.

Cu2S + O2 ⎯→⎯ 2 Cu + SO2


2016

m%( by; úoHq;a Y=oaO lsÍu i|yd lef;dav iy wefkdav m%;sls%hd ,shkak.

ms( Cu2+âq& + 2e ⎯→⎯ Cu^s& ^lef;dav m%;sls%hdj&

Cu^s& ⎯→⎯ Cu2+âq& + 2e ^wefkdav m%;sls%hdj&

5.3 ñY% f,day ñY% f,dayhkays jHqyd;aul ld¾hhka i|yd d-f.dkqfõ uQ,øjH .Kkdjla jeä jYfhka Ndú;d lrhs. ñY% f,dayhla hkq f,dayhl iy fjk;a uQ,øjHhka tlla fyda jeä .Kkdjl taldldr ñY%Khls' ñY% f,dayhl ix>gl f,dayh wkqj tajdys úúO .=Kdx. mj;S. m%Odk ix>glh f,i hlv wvx.= jk ñY% f,dayh jdfka f,i y÷kajhs. jdfka j¾. folla mj;S. tkï ldnka iy ñY% f,day jdfka' uq¿ jdfka ksIamdokfhka 90% l muK ldnka jdfka (carbon steel) fõ. ldnka jdfka mj;sk ldnka m%;sY;h wkqj ldnka j¾. wdldr ;=kls '

i. uDÿ jdfka (mild steel) ii. uOH jdfka (medium steel) iii. wê ldnka jdfka (high carbon steel)

ldnka jdfkaj, oeä nj ldnka m%udKh jeäj;au jeä fõ.

5.3j.=j: ldnka ixhq;sh iy ldnka jdfkaj, m%fhdack

ldnka jdfka j¾.h ldnka m%;sY;h (%) m%fhdack uDÿ jdfka 0.2 hka;% ks¾udKlrKh,

fudag¾ r:, jh¾ iy weK uOH jdfka 0.3-0.6 l=¿Kq, úÿï lgq iy ÿkq

wê ldnka jdfka 0.6-1.5 msys, ñá iy kshk

ñY% f,day jdfka ñY% f,day jdfkaj, wvx.= jkafka whka, ldnka iy Al, Cr, Co, Mo, Ni, Ti, W

iy$fyda V jeks f,day tlla fyda lsysmhls. u, fkdlk jdfkays Cr iy Ni jeks wfkl=;a f,dayo, wvx.= fõ. WmlrK jdfka (tool steel) ys Wfyda Mn wvx.= fõ. wdka;ßl f,day whkaj,g tla lsÍfuka f,dayfha oeänj jeälrk w;r ñY% f,dayh úLdokhg m%;sfrdaë fõ. iuyrla fmdÿ jYfhka oelsh yels ñY% f,day jdfka my; § we;.


2016

u, fkdlk jdfka - Fe (73%) , Cr (18%), Ni (8%) iy C (1%) gx.aiagka jdfka - Fe (81%) , W (18%) iy C (1%) fldfnda,aÜ jdfka - Fe (90%) , Co (9%) iy C (1%) uex.kSia jdfka - Fe (86%) , Mn (13%) iy C (1%) fldm¾ ñY% f,day úúO j¾.fha ñY% f,dayhkays fldm¾ Ndú;d lrhs. jvd;a jeo.;a ñY% f,day my; 5.4 j.=fõ § we; .

5.4 j.=j: fldm¾ ñY% f,day

ñY% f,day ixhq;sh

ms;a;, (Brass)

Cu iy Zn (5 – 45%)

f,dalv (Bronze) Cu iy Sn (1 – 15%)

we¨ñkshï f,dalv Sn iy Al (1 – 15%)

fmdiamria f,dalv Cu, Sn iy P (ca 1 %)

lshqfm%dksl,a (Cupronickel)

Cu iy Ni (10 – 30%)

ähqr¨ñka (Duralumin) ys Al (95%), Cu (4%) iy wfkla f,day o wvx.= fõ. msõg¾ (Pewter) ys Sn (70-99%) iy Cu fyda Pb (1-15%) wvx.= fõ.

5.4 3d-uQ,øjHhkays m%fhdack iy tajdys ixfhda. ialekaähï Sc ys úr,;djh ksid Sc nyq,j Ndú;d fkdlrk kuq;a wê ;Sj%;d ,dïmq jeks iuyrla bf,lafg%dksl Wmdx.j, Sc Ndú;d lrhs. úlsrKYS,Ss iuia:dkslh (Sc-46) fndr f;,a i|yd jQ m%idokd.drhka (refinery crackers) ys .fõIKldrl (tracing

agent) f,i Ndú;d lrhs. ghsfÜkshï ghsfÜkshï wfkl=;a d-f.dkqfõ uQ,øjHhkag jvd >k;ajfhka wvq h. Ti f,dayh iy tys Al wvx.= ñY% f,day, .=jka hdkd l¾udka;fha § jeä jYfhka ^.=jka ñihs, iy fcÜ tkaðka ksmoùu& Ndú;d fõ. u, fkdlk jdfkaj,g jvd jeä úLdok m%;sfrdaë;djhla Ti j,g we;. we,alSk nyq wjhùlrKfha § iy-W;afm%arlhla (co-catalyst) f,i TiCl4 iy TiCl3 Ndú;d lrhs. TiO2 ;Ska;" lvodis" ma,diaála" rEm,djkH øjH" lD;s%u fl¢ iy frÈms<s ksIamdokfha § iqÿ j¾Klhla f,i Ndú;d lrhs. Ti, jdfka fukau Yla;su;a h, kuq;a 45% la muK ieye,a¨ h. th 60% lska muK Al j,g jvd nrjk kuq;a fo.=Khla muK Yla;su;a h.


2016

jefkaähï SO2, SO3 njg TlaislrKfha § W;afm%arlhla f,i V2O5 Ndú;d lrhs. f*frdajefkaähï (ferrovanadium) ñY% f,dayh (50% Fe) ÿkq f,i o wêfõ.S lmk WmlrK i|yd o Ndú;d lrhs. fl%dañhï f*dfrdfl%daï (ferrochrome) ñY%f,day u,fkdn¢k jdfka (12-26% Cr) iy WmlrK jdfka (tool steel) (3-6%Cr) ksmoùug Ndú;d lrhs. úoHq;a f,daydf,amk wdrlaIs; wdf,amkhla f,i o Cr Ndú;d lrhs. Cr2O3 yß; j¾Klhla f,i Ndú;d lrk w;r fl%daï-fld<" fl%daï-;eô,s" fl%daï-ly iy fl%daï-r;= PbCrO4 u; mokï jQ ishü j¾Kl fõ.

uex.ksia KMnO4 hkq wdï,sl ødjKhkays § m%n, Tlaisldrlhls.tfiau th ÿn, úIîc kdYlhls. hlv jdfka ksmoùug hlv Ndú;d lrhs. WodyrKhla f,i u,fkdlk jdfka" uex.ksia jdfka" fldfnda,aÜ jdfka" gx.aiagka jdfka' Na2[Fe(CN)5NO] ^fj<| kduh Nipride& hkq wê reêr mSvkh (hypertension) iy jdysKS m%idrKh (vasodilation) i|yd Ndú;d lrk wldnksl T!IOhls. N2 iy H2 u.ska NH3 ksIamdokh lsÍfï § ^fyan¾ l%uh&, Fe

fyda Fe2O3 W;afm%arlhka f,i Ndú;d lrhs. fldfnda,aÜ Cr iy W iuÕ Co ñY% f,day idok w;r wêfõ.S, wê n/;s ls%hd, wê WIaK;aj lmk WmlrK i|yd Ndú;d lrhs. iuyrla ,jK Y; j¾I .Kkdjl isg §ma;su;a iy È.= l,amj;sk ks,ameyehla iys; fmdaisf,aka ùÿre, ueá NdKav, msÕka, .fvd,a iy tkeu,a ksmoùug Ndú;d lrhs. Co-60 lD;s%u iuia:dkslhla jk w;r jeo.;a .eud lsrK m%Njhla fõ. fuh b;du;a u wvqfjka mj;sk øjHhls (tracer). th f¾äfhda m%;sldrlhla f,i Ndú;d lrhs. fldfnda,aÜ laf,darhsâ ødjKhla ixiaf,aIl ;Ska; (sympathetic ink) j¾.hla f,i Ndú;d lrhs. ksl,a ud.ßka ksmoùfï § t<j¿ f;,a >k lsÍu i|yd ksl,a Ndú;d lrhs.yhsv%csfkaia iy hqf¾ia keue;s tkaihsuj, Ni wvx.= fõ. wdydr ksmoùu i|yd úI rys;, úLdok rys; f,day wjYH úg Ni Ndú;d lrhs. fldm¾ fldm¾, úoHq;a ikakdhlhla f,i o ñY% f,day jd;a;= lsÍu i|yd o ldis ksmoùu i|yd o tys we;s ksIals%h;djh ksid c, k, i|yd o fhdod .kshs. fn%dafvlaia (Bordeaux) {CuSO4iy Cu(OH)2}bysh (spray) lDIsl¾udka;fha § È,Sr wdidok je<elaùug Ndú;d lrhs. fldm¾ys ñY% Tlaihsv, wêikakdhl f,i Ndú;d lrhs Wod. La2-xBaxCuO (4-y).


2016

iskala u,lEu je<elaùu i|yd hlv u; wdf,amkh lsÍu ^.e,ajkhsia lsrSu&; ñY% f,day iE§u ^Wod: ms;a;,&; f,day fldgia jd;a;= lsÍu; negß bf,lafg%dav jeks tajd iskalays m%fhdack fõ. È,sfik uqyqK;a (luminous dials) ie§ug" TV ;sr, X lsrK iy m%;s§ma; myka ksmoùu i|yd ZnS Ndú;d lrhs' ñksidf.a iy i;=kaf.a jeãug o w;HdjYH uq,øjHhls. ;Ska;" rn¾ ksIamdok" inka iy rEm,djkH l¾udka;fha § ZnO Ndú;d lrhs.

idrdxYh

• mDÓú lfndf,ys we;s jvd;au nyq, 3d-uQ,øjH whka iy ghsfÜkshï h. • whka jdKscuh f,i ksiaidrKh lr.kq ,nkafka tys ksê jk ysughsÜ

(Fe2O3) iy ue.akghsÜ (Fe3O4) j,sks. • Odrd W!Iaul ;=< § whka ksê CO u.ska TlaisyrK lrùfuka whka ksmojd

.kq ,efí. f,da fndr f,i wmøjH bj;a lsÍug yqKq.,a tl;= lrkq ,efí. • le,afldmhsrhsÜia (chalcopyrite) j,ska fldm¾ ksiaidrKh lrkq ,efí.

ksêfhys wvx.= Cu2S jd;fha § is,sld iuÕ r;a lsÍfuka TlaisyrKh lrkq ,efí.

• 3d-uQ,øjH iy tajdfha ixfhda.hkays m%fhdack § we; . wruqKq fuu ieish wjidkfha § my; oE isÿ lsÍug Tng yels úh hq;=h.

• 3d-uQ,øjHhkays Lksc m%Nj ,ehsia;= .; lsÍu

• mDÓú lfndf,ys 3d-uQ,øjHhkays nyq,;djh iei|Su

• whka iy fldm¾ tajdfha ksêj,ska ksmoùu idlÉPd lsÍu

• whka iy fldm¾ mokï lrf.k ñY% f,dayhkays ixhq;sh iei|Su

• 3d-uQ,øjH iy tajdfha ixfhda.hkays m%fhdack idlÉPd lsÍu


2016

ls%hdldrlu

5.1 ghsfÜkshïys Lksc m%Nj 2la kï lrkak. 5.2 fldm¾ ksê folla kï lrkak.

5.3 i. Chromite ii. Pyrolusite iii. Siderite iv. Cuprite

hk tajdfha ridhksl ixhq;sh ,shkak.

5.4 mDÓú lfndf,ys nyq,ju mj;sk uq,øjH 3 fudkjd o @ 5.5 ñksia isrefrys nyq,;u f,day j¾. 4 fudkjd o @ 5.6 ñksia isrefrys nyq,;u 3d-uQ,øjHhka fudkjd o @ 5.7 ysughsÜj,ska whka ksmoùfï ld¾ñl l%uh myokak. 5.8 fldm¾ys ñY% f,day iy tajdfha ix>gl ,ehsia;= .; lrkak.

5.9 ;dm f,day ld¾ñl l%uh u.ska fldm¾ ksIamdokh lsÍfï mshjr 4 fudkjdo @


2016

Glossary/.egmo újrKh

Alloys : Metallic substance made by mixing and fusing two or more

metals, or a metal and a nonmetal, to obtain desirable

qualities such as hardness, lightness, and strength, e.g. brass,

bronze, steel, etc.

ñY% f,day : oDv;djh, ieye,a¨ nj iy Yla;su;a nj hk wNsu; ,laIK ,nd .ekSug f,day folla fyda jeä .Kkla, f,dayhla yd wf,dayhla fyda ú,hkh lr ñY% lr idokq ,nk f,dayuh øjH Wod( ms;a;,, f,dalv, jdfka

Basicity : The state of being a base.

NdIañl;djh : NIauhla f,i mej;Sfï yelshdj

Coordination number : The number of coordinated atoms surrounding the central

metal atom/ion in a complex or crystal.

ix.; wxlh : ixlS¾K ixfhda.hl fyda iaMálhl uOH f,day mrudKqj$whkh jgd ix.;j ne£ mj;sk mrudKq ixLHdj

Electrode potential : The measure of individual potential of a reversible electrode

at standard state, (E°)

bf,lafg%dav úNjh : iïu; ;;aj hgf;a § m%;Hdj¾; bf,lafg%davhl úNjh ms<n| ñkquls'

Electrolysis : The process of interchanging of atoms and ions by the

removal or addition of electrons from the external circuit. úoHq;a úÉfþokh : ndysr mßm:hl isg bf,lafg%dak ,nd .ekSu fyda msglsÍu

u`.ska whk iy mrudKq yqjudreùfï l%shdj,shhs'

Electron configuration : Specific distribution of electrons in atomic orbitals of atoms

or ions. bf,lafg%dak úkHdih :mrudKqjl fyda whkhl ldlaIslj, bf,lafg%dak me;sr we;s

wdldrhhs.

Electronegativity : The tendency of an atom to attract shared electrons úoHq;a iDK;djh : nkaOkhl we;s bf,lafg%dak ;ud foig weo .ekSfï

yelshdjhs'

Electropositive : The tendency of an atom to remove valence electrons. úoHq;a Ok;djh : ixhqc;d ljpfha mj;sk bf,lafg%dak bj;a lsÍug

mrudKqjla i;= yelshdjhs'

Furnace : An enclosed chamber in which heat is produced to generate

steam, destroy refuse, smelt or refine ores, etc. W!Iaulh : yqud,h ksmoùug" wmøjH úkdY lsÍug" úreùug fyda Y=oaO

lsÍug ;dmh ksmojkq ,nk ixjD; l=àrhhs'

Geometry : The arrangement of a molecule in the space.


2016

cHdñ;sh : wKqjl ;%sudK ieliqu$jHqyh

Group number : The number of a vertical column in the periodic table; there

are 18 groups.

ldKav wxlh : wdj¾;s;d j`.=fõ isria ;Srejlg wh;a wxlh. tys ldKav 18ls'

Hydration : The act or process of combining or treating with water.

ic,kh : c,h iu`. tl;= ùu fyda iïnkaO ùfï l%shdj,sh

Hydrolysis : The breaking down of a chemical compound into two or

more simpler compounds by reacting with water.

c, úÉfþokh : c,h iu`. m%;sl%shd lr ridhksl ixfhda.hla ir, ixfhda. folla fyda lsysmhla njg ì| fy,Su

Isoelectronic : Several dissimilar atoms or ions with identical electronic

configurations.

iubf,lafg%daksl : tlu bf,lafg%dak úkHdih iys; úúO mrudKq fyda whk

Melting point : The point at which the crystals of a pure substance are in

equilibrium with the liquid phase at atmospheric pressure. øjdxlh : jdhqf.da,Sh mSvkh hgf;a § ixY=oaO øjHhl iaMál tys øj

l,dmh iuÕ iu;=,s;j mj;sk WIaK;ajhhs'

Oxidation state : The state of an element or ion in a compound with regard to

the electrons gained or lost by the element or ion in the

reaction that formed the compound.

TlaislrK ;;ajh : uQ,øjHhl fyda whkhl wvx.= Ok fyda iDK wdfrdams; m%udKh

Oxidizing agent : A chemical compound that readily transfers oxygen atoms,

or a substance that gains electrons in a redox chemical

reaction.

Tlaisldrl øjH : m%;sl%shdjl § Tlaiscka msglrkq ,nk fyda bf,lafg%dak ,nd .kq ,nk fyda ridhksl ixfhda.

Paramagnetic : A substance that shows magnetic properties when placed in a

magnetic field.

wkqpqïNl : pqïNl lafIa;%hla ;=<;enQ úg pqïNl ,laIK fmkajk øjHhs'

Reducing agent : A substance that causes another substance to undergo

reduction and that is oxidized in the process.

Tlaisydrl øjH : fjk;a øjHhla TlaisyrKh lrjkq ,nk iy tu øjHhu TlaislrKh ùu isÿjk øjHhka

Tetrahedral molecule : A molecule in which the central atom is coordinated to four

groups, located in the four corners of a tetrahedron.


2016

p;=ia;,Sh wKqj : p;=ia;,hl fldka y;f¾ msysá ldKav 4 la uOH mrudKqjlg ix.; f,i ne£ we;s ixfhda.hls'


2016

References

1. Inorganic Chemistry, 2nd Ed., D.F. Shriver, P. W. Atkins, C. H. Langford,

1994.

2. Basic Inorganic Chemistry, 3rd Ed., F. A. Cotton, G. Wilkinson and P.

L.Gaus, 1995.

3. Concise Inorganic Chemistry, 4th Ed., J. D. Lee, 1991.

4. Principles of Bioinorganic Chemistry, S. J. Lippard and J. M. Berg, 1994.

5. Advanced chemistry, Philip Matthews, Cambridge University Press, 2000

6. A-Level Chemistry, E.N. Ramsden, Stanley Thornes, 2000

7. http://3.bp.blogspot.com/-b9iJER1-

wSI/VDOHAG3tWhI/AAAAAAAACdM/ah9m0q6kCn8/s1600/Blast-

Furnace.gif


2016

iïmdol uKav,h

l¾;D úIhixialrKh ^bx.%Ssis msgm;&

uydpd¾h fla. ir;a ã. fmf¾rd ruKS hq. ;ka;%Sf.dv

mßj¾;kh NdId ixialrKh

uydpd¾h fla. ir;a ã. fmf¾rd ks¾u,S lkakka.r

tÉ. l=rel=,kd;

.%e*sla ks¾udKlrKh mß.Kl ks¾udKlrKh

wd¾. tï. úu,a ví' úfÊkdhl wd¾.tï. úu,a ví' úfÊkdhl biqrs chiQrsh biqrs chiQrsh

fjí wka;¾.;h ixj¾Ol mo ieliSu

b|qks,a chùr mS. ã.Tia. Ys%md,S wd¾. tï. úu,a ví' úfÊkdhl biqrs chiQrsh

Y%S ,xld újD; úYajúoHd,h kdj," kqf.af.dv' m%:u uqøKh 2016

újD; wOHdmksl iïm;a njg m%;s jHqy.; lr we;'

fuys ish,qu mdG “Creative Commons” (CC 3.0) jdKsc fkdjk" iudkj fnod yerSfï n,m;%hg hg;a h.

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