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CuSO(4)(aq) overset(H(2)S(uarr))(to)M(da...

`CuSO_(4)(aq) overset(H_(2)S(uarr))(to)M(darr)overset("Excess")underset(KCn)(to)N+O`
Then final products N and O are respectively.

A

`[Cu(CN)_(4)]^(3-), (CN)_(2)`

B

`CuCN, (CN)_(2)`

C

`[Cu(CN)_(4)]^(2-), (CN)_(2)`

D

`Cu(CN)_(2), K_(2)S`

Text Solution

Verified by Experts

The correct Answer is:
A
`CuSO_(4)(aq) overset(H_(2)S)underset("Black ppt. (M)")to overset(KCN)underset("Excess")(to)+underset(N)([Cu(CN)_(4)]^(3-))+(CN)_(2)(uarr)`
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