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Which of the following complex formed by...

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

A

`Cu^(+2)+4NH_(3)to[Cu(NH_(3))_(4)]^(+2)`

B

`Cu^(+2)+4CN^(-)to[Cu(VN)_(4)]^(-2)`

C

`Cu^(+2)+2ento[Cu(en)_(2)]^(+2)`

D

`Cu^(+2)+4H_(2)Oto[Cu(H_(2)O)_(4)]^(+2)`

Text Solution

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The correct Answer is:
B
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