JEE Main 2020 (3 Sep, Shift 1) Chemistry Q28: Solutions

Question

Henry’s constant (in kbar) for four gases $\alpha$, $\beta$, $\gamma$ and $\delta$ in water at 298 K is given below :
| | $\alpha$ | $\beta$ | $\gamma$ | $\delta$ |
| $\mathrm{K_H}$ | 50 | 2 | $2	imes10^{-5}$ | 0.5 |
(density of water $=10^3$ $\mathrm{kg\ m^{-3}}$ at 298 K)
This table implies that :

Accepted Answer

Options 2 and 4: solubility of $\gamma$ at 308 K is lower than at 298 K; The pressure of a 55.5 molal solution of $\delta$ is 250 bar

Answer

$\alpha$ has the highest solubility in water at a given pressure

Answer

solubility of $\gamma$ at 308 K is lower than at 298 K

Answer

The pressure of a 55.5 molal solution of $\gamma$ is 1 bar

Answer

The pressure of a 55.5 molal solution of $\delta$ is 250 bar

JEE Main 3 September 2020, Shift 1, Chemistry Q28