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Among the ligands NH(3), en, CO and CN^(...

Among the ligands `NH_(3)`, `en`, `CO` and `CN^(-)`, the correct order of their increasing field strength is e n < C N − < N H 3 < C O N H 3 < e n < C N − < C O C N − < N H 3 < C O < e n C O < N H 3 < e n < C N −

A

`en lt CN^(-) lt NH_(3) lt CO`

B

`NH_(3) lt en lt CN^(-) lt CO`

C

`CN^(-) lt NH_(3) lt CO lt en`

D

`CO lt NH_(3) lt en lt CN^(-)`

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