Question

Condition of the reaction of laboratory method of preparation of ammonia

Answer 1

Answer:

✔Ammonia gas is usually prepared in the laboratory by gently heating ammoniumchloride (NH4Cl) and slaked lime [Ca(OH)2]. Ammonia gas is lighter than air, necessitating its collection by the downward displacement of air. Because it is highly soluble in water it cannot be collected over it.

Answer 2

☞Answer☜

Laboratory method of preparation of dihydrogen

Hydrogen is prepared in the laboratory by the action of the dilute hydrochloric acid or dilute sulphuric acid on granulated zinc.

• Use of Granulated Zinc.
• Reaction:
• Collection of Gas: Hydrogen gas is collected by downward displacement of water.

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