1371. Which of the statements given below concerning properties of solution, describe a colligative effect ?

A. Edge of boiling over of unadulterated water diminishes by the extra of ethanol
B. Fume tension of unadulterated water diminishes by the expansion of nitric corrosive
C. Fume tension of unadulterated benzene diminishes by the expansion of naphthalene *
D. Edge of boiling over of unadulterated benzene increments by the expansion of toluene

1372. The Ionic strength of a solution containing 0.1mole/kg of KCI and 0.2 mole/kg of CuSo4 is :

A. 0.3
B. 0.6
C. 0.9 *
D. 0.2

1373. Maximum freezing point falls in :

A. Camphor *
B. Napthalene
C. Benzene
D. Water

1374. A solution contains 1.2046 *10(24) hydrochloride acid molecules in one dm3 of the solution . The strenght of the solution is :

A. 6 N
B. 2 N *
C. 4 N
D. 8 N

1375. Camphor is often used in molecular mass determination because :

A. It is solvent for organic substances
B. It is readily available
C. It has a cryoscopic constant that is very high *
D. It is volatile

1376. The weight of pure NaOH required to prepare 250 Cm3 of 0.1 N solution is :

A. 4 G
B. 1 G *
C. 2 G
D. 5 G

1377. The fume strain of two fluids ‘p’ and ‘Q’ are 80 and 60 torr separately . The all out fume strain of arrangement acquired by Blending 3 mole of P and 2 mol of Q would be :

A. 140 torr
B. 20 torr
C. 68 torr
D. 72 torr *

1378. 0.5 M of H2SO4 is diluted from 1 litre to 10 litre, normality of resulting solution is :

A. 1 N
B. 0.1 N *
C. 10 N
D. 11 N

1379. The vant Hoff factor (i) accounts for :

A. Degree of solubilisation of solute
B. The extent of dissolution of solute
C. The Degree of separation of solute *
D. The degree of decomposition of solution

1380. The osmotic pressure of a dilute solution is directly proportional to the :

A. Diffusion rate of solute
B. Ionic concentration *
C. Elevation in boiling point
D. Flow of solvent from a concentrated to a dilute solution