Question

Ammonia can be collected by ______.

विकल्प

• upward displacement of water

• upward displacement of air

• downward displacement of water

• downward displacement of air

Answer 1

Ammonia can be collected by downward displacement of air.

Explanation:

Ammonia is lighter than air, so it rises to the top of an inverted jar and pushes the heavier air downwards. It cannot be collected over water because it is highly soluble in it.