Question

In a laboratory setup for collecting a gas by water displacement, which of these gases could NOT be collected over $H_{2}O$ because of its solubility?

• A. $C{O}_2$
• B. $NO$
• C. $O_2$
• D. $N{H}_3$
• E. $C{H}_4$

Answer 1

The correct option is D $N{H}_3$

In a laboratory setup for collecting a gas by water displacement, ammonia $\left(N{H}_3\right)$ gas could NOT be collected over water because of its solubility.
Note: Ammonia can form hydrogen bonds with water due to which it is extremely soluble in water. In a laboratory setup for collecting a gas by water displacement, the gas to be collected should be water insoluble.