ICSE Class 10 Chemistry Question 59 of 69

Study of Compounds — Ammonia — Question 60

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60
Question

Question 2(2018)

Give a reason why —

(i) Concentrated sulphuric acid, is not used for drying ammonia gas.

(ii) Ammonia gas is not collected over water.

Answer

(i) As sulphuric acid reacts chemically with ammonia to form ammonium sulphate hence, it is not used as a drying agent for drying ammonia.

2NH3 + H2SO4 ⟶ (NH4)2SO4

(ii) As ammonia gas is highly soluble in water hence, it is not collected over water.