Calculate the concentration of dissolved gas in water at $25^{\circ} C$ if the partial pressure of the gas at the same temperature is $0.15 \ atm$. $\left[K_H = 0.15 \ mol \ dm^{-3} \ atm^{-1}\right]$ (in $M$)

Which of the following gases is least soluble in water under the same conditions of temperature and pressure?

Carbonated water is an example of a solution of

Choose the correct statement.

The solubility curve of $KNO_3$ in water is shown below. The amount of $KNO_3$ that dissolves in $50 \ g$ of water at $40^{\circ} C$ is closest to $.... \ g$

If four gases $A$,$B$,$C$ and $D$ have Henry's constant $(K_H)$ values $1.9 \times 10^1 \ bar$,$6.5 \times 10^{-4} \ bar$,$7.8 \times 10^{-4} \ bar$ and $6.0 \times 10^3 \ bar$ respectively,then which of the following gas has maximum solubility at the same partial pressure?