Question

state why concentrated H2 S o4 is not used for drying Ammonia gas

Answer 1

This is because ammonia reacts with conc. sulphuric acid to form ammonium sulphate.

2NH3 + H2SO4 --- ( NH4)2SO4(ammonium sulphate).

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Answer 2

Answer:

Conc. sulphuric acid is acidic in nature whereas ammonia gas is basic, so they would react with each other.