Name the gas evolved when ammonium salts are treated with alkalis.

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Solution

When ammonium salts are treated with alkalis NH₃ gas (ammonia) is evolved.
Example with reaction-
Ca(OH)₂(aq) + 2NH₄Cl (aq) → CaCl₂(aq)+ 2NH₃(g) + 2H₂O (l)
Calcium hydroxide + Ammonium chloride → Calcium chloride + Ammoina +Water

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