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In the following pair find the pair in w...

In the following pair find the pair in which first compound do not form complex with `NH_(3)` and second give coloured complex with `NH_(3)`

A

`CoCl_(2),ZnSO_(4)`

B

`Agl,CuSO_(4)`

C

`NiCl_(2),CuSO_(4)`

D

`Cd(NO_(3))_(2),ZnSO_(4)`

Text Solution

Verified by Experts

`Agl+NH_(3)to` No reaction `:.Ag` I is covalent.
`CuSO_(4)+4NH_(4)to[Cu(NH_(3))_(4)]SO_(4)` Blue colour.
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