ON adding NaOH to ammonium sulphate, a colourless gas with pungent odour is evolved which forms a blue coloured complex with `Cu^(2+)` ions. Identify the gas.

ON adding NaOH to ammonium sulphate, a colourless gas with pungent odo

1.	ON adding NaOH to ammonium sulphate, a colourless gas with pungent odour is evolved which forms a blue coloured complex with `Cu^(2+)` ions. Identify the gas.
Answer» A colourless gas with pungent odour is ammonia. The following reactions are carried out. `(NH_(4))_(2)SO_(4)+2NaOH overset(Delta)rarr 2NH_(3)+2H_(2)O+Na_(2)SO_(4)` `underset((aq))(4NH_(3))+underset((aq))(Cu^(2+))rarr underset("Blue coloured complex")([Cu(NH_(3))_(4)]^(2+))`

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ON adding NaOH to ammonium sulphate, a colourless gas with pungent odour is evolved which forms a blue coloured complex with `Cu^(2+)` ions. Identify the gas.

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