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When NH4OH is added to copper sulphate s...

When `NH_4OH` is added to copper sulphate solution, blue colour is obtained due to formation of

A

`Cu(NH_3)_4 SO_4`

B

`Cu(NH_3 SO_4)_2`

C

`Cu(OH)_2`

D

`CuO`

Text Solution

Verified by Experts

The correct Answer is:
A
`CuSo_4 + 4 NH_4 OH rarr [Cu(NH_3)_4]SO_4 + 4 H_2 O`.
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