Question

Ammonia gas is collected by

Answer 1

Ammonia gas is usually prepared in the lab by gently heating ammonium chloride and slaked lime . Ammonia gas is lighter than air, necessitating it's collection by the downword displacement of air .Because it is highly soluble in water it cannot be collected over it.

Answer 2

All gases are less dense than liquod water and will displace the water downwards. No good forsoluble gaseslike ammonia, hydrogen chloride, nitrogen .dioxide or sulphur dioxide. You can collect in inverted gas jarif bigger sample required.