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Ammonia is used in detection of Cu^(2+) ...

Ammonia is used in detection of `Cu^(2+)` ion because

A

aqueous solution of `NH_3` reacts with `Cu^(2+)` ion to form deep blue coloured complex

B

`NH_3` reacts with `Cu^(2+)` ion to give blue precipitate of CuO

C

aqueous solution of `NH_3` reacts with `Cu^(2+)` ion to form white coloured complex

D

`NH_3` reacts with `Cu^(2+)` ion to give green precipitate CuO

Text Solution

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The correct Answer is:
A
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