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Question
State why concentrated sulphuric acid is not used for drying ammonia gas.
Very Short Answer
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Solution
As sulphuric acid reacts chemically with ammonia to form ammonium sulphate, it is not used as a drying agent for drying ammonia.
\[\ce{2NH3 + H2SO4 -> (NH4)2SO4}\]
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Chapter 9: Study of Compounds: Ammonia - Questions from ICSE Examinations [Page 219]
