Which one of the following is an outer o...

Which one of the following is an outer orbital complex and exhibits paramagnetic behaviour?

A

`[Cr(NH_(3))_(6)]^(3+)`

B

`[Co(NH_(3))_(6)]^(3+)`

C

`[Ni(NH_(3))_(6)]^(2+)`

D

`[Zn(NH_(3))_(6)]^(2+)`

Verified by Experts

The correct Answer is:

C

`[Ni(NH_(3))_(6)]^(2+)`
Weak ligand with two unpaired electron.

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