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Which of the following complexes formed ...

Which of the following complexes formed by `Cu^(2+)` ions is most stable ?

A

`Cu^(2+)+4NH_(3) to [Cu(NH_(3))_(4))}^(2),Log K = 11.6`

B

`Cu^(2+)+4CN^(-)rarr[Cu(CN)_4]^(2-),Log K =27.3`

C

`Cu^(2+)+2enrarr[Cu(en)_(2)]^(2+),Log K =15.4 `

D

`Cu^(2+) + 4H_(2)) to [ Cu(H_(2)O)_(4)]^(2+) : Log K = 8.9`

Text Solution

Verified by Experts

The correct Answer is:
B
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