# Topic: Solution

1

Q: (a) :  A
(b) :  B
(c) :  C
(d) :  D

Q: (a) :  A
(b) :  B
(c) :  C
(d) :  D

Q: (a) :  A
(b) :  B
(c) :  C
(d) :  D

Q: (a) :  60
(b) :   120
(c) :  180
(d) :   380

Q:

The osmotic pressure at C o 17 of an aqueous solution containing 1.75 g of sucrose per 150 ml solution is

(a) :  0.8 atm
(b) :  0.08 atm
(c) :   8.1 atm
(d) :  9.1 atm

Q:

Normal boiling point of water is 373 K (at 760mm). Vapour pressure of water at 298 K is 23 mm. If the enthalpy of evaporation is 40.656 kJ/mole, the boiling point of water at 23 mm pressure will be

(a) :  250 K
(b) :   294 K
(c) :  51.6 K
(d) :  12.5 K

Q: (a) :  A
(b) :  B
(c) :  C
(d) :  D

Q:

A solution is obtained by dissolving 12 g of urea (mol.wt.60) in a litre of water. Another solution is obtained by dissolving 68.4 g of cane sugar (mol.wt. 342) in a litre of water at are the same temperature. The lowering of vapour pressure in the first solution is

(a) :  Same as that of 2nd solution
(b) :  Nearly one-fifth of the 2nd solution
(c) :  Double that of 2nd solution
(d) :  Nearly five times that of 2nd solution

Q: 