Question

The solubility of ammonia in water is 52.9 whereas solubility of $N_2$ is only 0.0019. Reason for this is

• A. $N_2$ is heavier than $N{H}_3$
• B. $N{H}_3$ reacts with water forming $N{H}_{4}OH$
• C. Water reacts with $N_2$ forming $N_{2}O$
• D. $N{H}_3$ is pyramidal in shape, whereas $N_2$ is linear

Answer 1

The correct option is B $N{H}_3$ reacts with water forming $N{H}_{4}OH$

When ammonia is dissolved in water. It reacts with water forming ammonium hydroxide $\left(N{H}_{4}OH\right)$. So as the amount of $N{H}_3$ dissolving in water is more due to its reactivity, the solubility is more.
So generally to store ammonia which is a gas, we store in laboratories as $N{H}_{4}OH$ by mixing with water.