Describe the laboratory preparation of ammonia gas with a labelled diagram.

Study the given figure and answer the following questions.

1. Which gas is being collected in the gas jar?
2. Write the balanced chemical equation for the preparation of this gas.
3. Which litmus is used to identify this gas?
4. Why the hard glass test tube is slightly inclined?
5. What is the use of the lime tower?

What is downward displacement of air?

Which gas is obtained by reacting slaked lime and ammonium chloride?

What is Haber's process?

In what ratio should ammonium chlroide and calcium hydroxide be mixed for the laboratory preparation of ammonia gas?

Why is ammonia gas passed into lime tower before collection in gas jar?