If 22 g of benzene is dissolved in 122 g of CCl₄, the mass percentage of CCl₄ and benzene respectively are-

1. $15.28$ $\%,$ $84.\mathrm{72<mspace\; width="1em"></mspace>}\%$ $$

2. $84.72$ $\%,$ $15.28$ $\%$

3. $8.72$ $\%,$ $91.\mathrm{28<mspace\; width="1em"></mspace>}\%$

4. 91.28 %, 8.72 %

Match the following type of intermolecular interactions present in the pair of compounds given:

What is the mole fraction of benzene in a solution where benzene constitutes 30% by mass in carbon tetrachloride (\(\text{CCl}_4\))?

1. 0.46

2. 0.64

3. 0.91

4. 0.19

What mass of urea is needed to prepare 2.5 kg of a 0.25 m aqueous solution?

The molarity of a 20% (mass/mass) KI solution with a density of 1.202 g/mL will be:

1. 2.34 M

2. 1.45 M

3. 3.32 M

4. 0.23 M

The solubility of H₂S in water at STP is 0.195 m. The value of Henry's constant is:

A solution is prepared by mixing 300 g of a 25% (by mass) solute solution with 400 g of a 40% (by mass) solute solution. The mass percentage of the solvent in the final mixture is:

The vapour pressures of pure liquids A and B at 350 K are 450 mm Hg and 700 mm Hg, respectively. The composition (in terms of mole fractions) of the liquid mixture for which the total vapour pressure is 600 mm Hg is:

The vapour pressure of water in the solution having 50 g of urea dissolved in 850 g of water is:

(Vapor pressure of pure water at 298 K is 23.8 mm Hg) 

1. 23.40 mm of Hg

2. 33.46 mm of Hg

3. 12.76 mm of Hg

4. 87.12 mm of Hg

The amount of sucrose is to be added to 500 g of water such that it boils at 100°C is:

( Given: The boiling point of water at 750 mm Hg is 99.63°C ; K_b = 0.52 K kg mol^-1)

1. 145.76 g

2. 213.54 g

3. 121.67 g

4. 195.36 g