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CuSO(4), when reacts with KCN forms CuCN...

`CuSO_(4)`, when reacts with KCN forms CuCN, which is insoluble in water. It is soluble in excess of KCN, due to formation of the following complex

A

`Cu(CN)_(2)`

B

`K_(2)[Cu(CN)_(4)]`

C

`K_(3)[Cu(CN)_(4)]`

D

`K[Cu(CN)_(2)]`

Text Solution

Verified by Experts

The correct Answer is:
C
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