You enter a laboratory after a class has completed the Fountain Experiment. How will you be able to tell whether the gas used in the experiment was hydrogen chloride or ammonia.

Name : An alkaline gas 'A' which gives dense white fumes with hydrogen chloride.

Write the equation for the following reaction : Aluminium nitride and water.

Give equation for – reaction in which NH₃ is oxidized by :

(i) a metal oxide

(ii) a gas which is not oxygen