Vapour pressure of a solvent containing non-volatile solute:

(a)  (b) (c)  (d) 

Equimolal solutions of A and B show depression in freezing point in the ratio 2 : 1. A remains in its normal state in solution. B will be …. in solution.

The osmotic pressure of a solution can be accurately measured in the shortest possible time by:

The boiling point of an azeotropic mixture of water and ethyl alcohol is less than that of theoretical value of water and alcohol mixture. Hence, the mixture shows:

Solutions distilled without change in composition at a temperature are called:

At high altitudes the boiling point of water decreases because:

The relative lowering of vapour pressure in case of very dilute solutions is directly proportional to:

Camphor is used as solvent to determine mol. wt. of non-volatile solute by Rast method because for camphor:

The vapour pressure of water depends upon:

If the observed mol. mass from osmotic pressure method for KCl is 38.75 then, the value of osmotic coefficient is

20 g of a substance were dissolved in 50 ml. of water and the osmotic pressure of the solution was found to be 600 mm of mercury at 15°C. The molecular weight of the substance

The vapour pressure of pure liquid solvent A is 0.80 atm. When a non-volatile substance B is added to the solvent, its vapour pressure drops to 0.60 atm; mol fraction of the component B in the solution is:

pH of a 0.1 M monobasic acid is found to be 2. Hence its osmotic pressure at a given temp. TK is: