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the mo\Ial- depression constant of ni

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trobenzene.

(ii) Calculate the Pressure of a (a) (1) What 15 fractlonal

distillation? sodium containing 3.45 g of sucrose (ii) Mention

two requirements for ugi in one litre of water at 300 K. [-1]

this technique. sodium containing 3.45 g ot suCr0S WI Or

usmg in one litre of water at 300 K. [-1] this teChmque' an

Both diamond and graphite are allotropic (iii) What type of

liquid mixtures forms of carbon but diamond is hard and be

by this pI'OC8SS? a bad conductor of electricity while

graphite is soft and a good Condudgr of nu A - - electricity.

Explain. State thp 141 ________,,J vvllllC

is soft and a good conductor of (b) A current of 5

amperes is passed through electricity. Explain. State the

hybridization a molten solution for 36 minutes. 2.967 S

of carbon atoms in both substances. [6] of -17- -- -(3) A i5 Com (C) W pres d hat am from a

volulle at a pressure of (175 used fare H18

CD13 D"...-.._ 8 of C1113 in '11: or f me

me indicators Whld; can be . at a Pressure

of 0.75 used for the fonowmg n 1 am,

6616 3 volume of 450 cm :6 316.66

Indicate Whether the follvwing are Sm 2

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Cm? During the operation 12 I of heat Of

Weak acids/bases.

is liberated. Calculate the change in the m h

intemal energy of the system.