EASY
UPSC CAPF AC Paper - I
IMPORTANT
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The solubility of a gas in liquid increases with

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Important Questions on Chemistry

EASY
UPSC CAPF AC Paper - I
IMPORTANT

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.

EASY
UPSC CAPF AC Paper - I
IMPORTANT

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

EASY
UPSC CAPF AC Paper - I
IMPORTANT

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 ?

HARD
UPSC CAPF AC Paper - I
IMPORTANT

Which of the following statements are valid for a solution containing a non-volatile solute?

1. The solution exhibits a lower vapor pressure than that of the pure solvent.

2. The solution exhibits a higher vapor pressure than that of the solvent.

3. The freezing point of the solution is less than that of the solvent.

4. The freezing point of the solution is more than that of the solvent.

Select the correct answer using the codes given below:

EASY
UPSC CAPF AC Paper - I
IMPORTANT

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

EASY
UPSC CAPF AC Paper - I
IMPORTANT
When blood cells are placed in a solution of KCI whose osmotic pressure is greater than that of the cell fluid, there occurs
EASY
UPSC CAPF AC Paper - I
IMPORTANT
Muddy water is purified by adding alum due to
EASY
UPSC CAPF AC Paper - I
IMPORTANT
The pH value of the solution obtained by complete neutralisation of hydrochloric and sodium hydroxide solution will be