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xxMikexx [17]
3 years ago
14

C) Ammonia is added to copper sulphate solution till excess?​

Chemistry
1 answer:
satela [25.4K]3 years ago
7 0
This is your perfect answer.

Ammonia reacts with copper(II)ions to precipitate light blue copper hydroxide. Ammonia causes the copper ion to go back into the solution as a deep blue ammonia complex. The precipitate dissolves as we add an excess of ammonia.
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