
The solubility of a gas in liquid increases with


Important Questions on Chemistry
Match the List I with the List II.
List I List II
A. Tyndall effect 1. Dispersion of finely divided droplets in another liquid
B. Brownian movement 2. Flocculation and settling down of the discharged sol particles.
C. Coagulation 3. Zig-zag movement executed by a colloidal particle in the dispersion medium.
D. Emulsion 4. Scattering of light by the particles.

Match the List I with the List II.
List I List II
A. Dialysis 1. Precipitate converts to colloidal solution
B. Peptization 2. Precipitation of colloidal solution
C. Flocculation 3. Protective power
D. Gold number 4. Purification of colloidal solution

Consider the following statements
1. Liquid drops are spherical due to surface tension forces.
2. Surfactants are surface active agents which decrease surface tension e.g. ,Soaps and detergents.
3. Surface tension of a liquid is measured with the help of apparatus called stalgmometer.
Which of the statements given above are correct ?

Which of the following statements are valid for a solution containing a non-volatile solute?
. The solution exhibits a lower vapor pressure than that of the pure solvent.
. The solution exhibits a higher vapor pressure than that of the solvent.
. The freezing point of the solution is less than that of the solvent.
. The freezing point of the solution is more than that of the solvent.
Select the correct answer using the codes given below:

Match the List I with the List II.
List I List II
A. Cod liver 1. Liquid in a gas
B. Vanishing cream 2. Solid dispersed in gas
C. Fog 3. Aqueous emulsion
D. Smoke 4. Water in oil emulsion



