The diagram showing the laboratory preparation of ${N H}_{3}$ is given.
(a) What are the reactants used?
(b) Why $C a O$ is used?
(c) What is the reason behind not keeping the jar in the upward direction?
(d) Write an experiment to identify presence of ${N H}_{3}$ in the gas jar.

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Solution

(a) Ammonium chloride and calcium hydroxide
(b) To get dry ammonia, the gas is passed through drying the tower containing lumps of $C a O$ .
(c) It is collected by the downward displacement of air because it is lighter than air.
(d) Fountain experiment
Being basic, ammonia gas changes red litmus solution blue.

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The diagram showing the laboratory preparation of NH3 is given.(a) What are the reactants used?(b) Why CaO is used?(c) What is the reason behind not keeping the jar in the upward direction? (d) Write an experiment to identify presence of NH3 in the gas jar.

The diagram showing the laboratory preparation of ${N H}_{3}$ is given.
(a) What are the reactants used?
(b) Why $C a O$ is used?
(c) What is the reason behind not keeping the jar in the upward direction?
(d) Write an experiment to identify presence of ${N H}_{3}$ in the gas jar.