Same chapter3 marksDifficulty: Medium
Why is ammonia dried over quicklime and not over concentrated sulphuric acid or phosphorus pentoxide?
Study of Compounds: Ammonia
3 marksDifficulty: Medium
State three tests by which ammonia gas can be identified.
Original Khojo Papers practice question — not from a past board paper.
Answer
It has a characteristic pungent smell. It turns moist red litmus paper blue, showing it is alkaline. It gives dense white fumes of ammonium chloride when a glass rod dipped in concentrated hydrochloric acid is held in it.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
It also gives a deep blue colour when passed into copper sulphate solution.
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