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la) Write balanced chemical equations involved in the extraction
of copper.
What is blister
copper? [3] (b) What happens when copper is heated with
[Z] (1) an. HCI (ii) an. HNO3
(iii) aqueous AgNO3 solution (iv) iron is added to aq. CuSO4
solution
QUESTION 6
(a) Give reasons for each of the following: [2] (i) Among the
hydride
of halogens, HF
is least volatile, whereas HCl is most volatile.
SECTION C (Answer any two questions.)
QUESTION s "'---
(a) How will you obtain
(1') ethyl acetate from acetic acid (ii) nitrobenzene
frombenzene (iii) iodoform from ethanol
(iv) urea from cyanamide? [45 lb) Draw and name the
different isomers of C31-I603. Which of them exhibit (s)
sodium argento cyanide-_
(b) Describe the preparation of 532 F
permanganate from pyrolusite ore
QUESTION 1 --____(a) Give balanced chemical equation for
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following reactions:
(i) Sodium nitrite with potassium permanganate. Acidified
potassium dichromate is heated with sodium chloride.
(C) Give one test to distinguish between and fructose. Give
the relevant equations
Steam is passed over heated
(b) Write balanced chemical equations invoix-a;
in the extraction of silver by - f process. 53: 3
