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Which of the following is the strongest ...

Which of the following is the strongest field ligand?

A

(a) `NO_2^(-)`

B

(b) `CN^(-)`

C

(c) `NH_3`

D

(d) `En`

Text Solution

Verified by Experts

The correct Answer is:
B
`CN^(-)` is strongest field ligand. Thus spectrochemical series order is:
`I^(-)ltBr^(-)ltCl^(-)ltF^(-)lt[C_2O_4]^(2-)ltH_2OltpyltNH_3ltenltNO_2^(-)ltCN^(-)ltCO`.
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