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Which of the following are paramagnetic?...

Which of the following are paramagnetic?

A

`K_(4)[Ni(CN)_(4)]`

B

`K_(3)[Cr(CN)_(6)]`

C

`K_(3)[Co(CN)_(6)]`

D

`K_(2)[Ni(CN)_(4)]`

Text Solution

Verified by Experts

The correct Answer is:
2
In `K_(3)[Cr(CN)_(6)], Cr^(+3)` has `d^(2)sp^(3)` and has there unpaired electrons
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