On the basis of the information given below, mark the correct option.

i.	In a bromoethane and chloroethane mixture, intermolecular interactions of A—A and B—B type are nearly the same as A—B type interactions.
ii.	In an ethanol and acetone mixture, A—A or B—B type intermolecular interactions are stronger than A—B type interactions.
iii.	In a chloroform and acetone mixture, A—A or B—B type intermolecular interactions are weaker than A—B type interactions.

1.  Solutions (ii) and (iii) will follow Raoult’s law

2.  Solution (i) will follow Raoult’s law

3.  Solution (ii) will show negative deviation from Raoult’s law

4.  Solution (iii) will show positive deviation from Raoult’s law

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?

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:

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 × ${10}^{-5}$ 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

The intermolecular forces between benzene molecules are approximately equal in strength to those between toluene molecules. For a benzene + toluene mixture, identify the incorrect statements.

Which option lists the incorrect statements?

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)

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

(a) $i=\frac{\text{\hspace{0.17em}Normal molar mass\hspace{0.17em}\hspace{0.17em}}}{\text{Abnormal molar mass}}$

(b) $i=\frac{\text{\hspace{0.17em}Abnormal molar mass\hspace{0.17em}\hspace{0.17em}}}{\text{Normal molar mass}}$

(c) $i=\frac{\text{\hspace{0.17em}Observed colligative property\hspace{0.17em}\hspace{0.17em}}}{\text{Calculated colligative property}}$

(d) $i=\frac{\text{\hspace{0.17em}Calculated colligative property\hspace{0.17em}\hspace{0.17em}}}{\text{Observed colligative property}}$

The correct choice among the given options is: