Two beakers of capacity 500 mL were taken. One of these beakers, labelled as “A”, was filled with 400 mL water whereas the beaker labelled “B“ was filled with 400 mL of 2M solution of NaCl. At the same temperature, both the beakers were placed in closed containers of the same material and the same capacity as shown in the figure.

At a given temperature, which of the following statements is correct about the vapour pressure of pure water and that of NaCl solution?

1.	Vapour pressure in container (A) is more than that in container (B)
2.	Vapour pressure in container (A)is less than that in container (B)
3.	Vapour pressure is equal in both containers
4.	The vapour pressure in container (B) is twice the vapour pressure in container(A)

If two liquids A and B form minimum boiling azeotrope at some specific composition then

4 L of 0.02 M aqueous solution of NaCl was diluted by adding 1 L of water. The molarity of the resultant solution is -

Information: Some hydrogen bonds between methanol molecules are disrupted after adding acetone to methanol.
Select the appropriate option:

K_H value for Ar(g), CO₂ (g), HCHO (g) and CH₄(g) are 40.39, 1.67, 1.83 x ${10}^{-5}$ and 0.413 respectively.

Arrange these gases in the order of their increasing solubility.

1.  HCHO < CH₄ < CO₂ < Ar

2.  HCHO < CO₂ < CH₄ < Ar

3.  Ar < CO₂ < CH₄ < HCHO

4.  Ar < CH₄ < CO₂ < HCHO

Which of the following factor (s) affect the solubility of a gaseous solute in the fixed volume of liquid solvent?

(i) Nature of solute

(ii) Temperature

(iii) Pressure

a. (i) and (iii) at constant T

b. (i) and (ii) at constant p

c. (ii) and (iii)

d. Only (iii)

Choose the correct option

1. (a, b)

2. (b, c)

3. (c, d)

4. (a, d)

The strength of intermolecular forces between two benzene molecules is approximately equivalent to that between two toluene molecules.

Identify the incorrect statements (from a to d given above) regarding a mixture of benzene and toluene:

1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)

Relative lowering of vapor pressure is a colligative property because

The correct choice among the given is -

1. (a, b)

2. (b, c)

3. (c, d)

4. (a, d)

Van't Hoff factor (i) is given by the expression:

a. $i=\frac{\text{ Normal molar mass }}{\text{abnormal molar mass.}}$

b. $i=\frac{\text{ Abnormal molar mass }}{\text{normal molar mass. }}$

c. $i=\frac{\text{ Observed colligative property }}{\text{calculated colligative property. }}$

d. $i=\frac{\text{ Calculated colligative property }}{\text{observed colligative property.}}$

The correct choice among the given options are:

1. (a, b)

2. (b, c)

3. (c, d)

4. (a, c)

Isotonic solutions must have the same-

a. Solute

b. Density

c. Elevation in boiling point

d. Depression in freezing point

1. (a, b)

2. (b, c)

3. (c, d)

4. (a, d)