Q. 23.5( 4 Votes )

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Answer :

The reaction of ammonium salts with a base result in the formation of ammonia as a product and hence on adding NaOH to ammonium sulphate, ammonia gas is released. Ammonia when reacted with Cu2+ forms a blue coloured complex. Ammonia donates its lone pair of electrons by acting as a Lewis Base while Cu2+ accepts the lone pair of electrons, being an electrophile.

The chemical reaction for the above mentioned two processes are:

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