iCON Education - Solutions AIIMS Test

Question 1: Palette 1/3

AIIMS 2019 MCQ

The vapour pressure of pure $\mathrm{CHCl}_3$ and $\mathrm{CH}_2 \mathrm{Cl}_2$ are 200 and $41.5 \mathrm{~atm}$ respectively. The weight of $\mathrm{CHCl}_3$ and $\mathrm{CH}_2 \mathrm{Cl}_2$ are respectively $11.9 \mathrm{~g}$ and $17 \mathrm{~g}$. The vapour pressure of solution will be

A

80.5

B

79.5

C

94.3

D

105.5

Question 2: Palette 2/3

AIIMS 2019 MCQ

If boiling point of water is $100^{\circ} \mathrm{C}$. How much gram of $\mathrm{NaCl}$ is added in $500 \mathrm{~g}$ of water to increase its boiling point of water by approx $1^{\circ} \mathrm{C}\left(K_b\right)_{\mathrm{H}_2 \mathrm{O}}=0.52 \mathrm{~K} \times \mathrm{kg} /$ mole.

A

2.812 g

B

28.12 g

C

14.06 g

D

7.03 g

Question 3: Palette 3/3

AIIMS 2018 MCQ

Benzoic acid undergoes dimerisation in benzene solution. The van't Hoff factor $(i)$ is related to the degree of association '$x$' of the acid as

A

$i=(1-x)$

B

$i=(1+x)$

C

$i=\left(1-\frac{x}{2}\right)$

D

$i=\left(1+\frac{x}{2}\right)$