1.

The correct increasing order of trans-effect of the following species is -

Answer»

`CN^(-) gt BR^(-) gt C_(6)H_(5)^(-) NH_(3)`
`NH_(3) gt CN^(-) gt Br^(-) gt C_(6)H_(5)^(-)`
`CN^(-) gt C_(6)H_(5)^(-) gt Br^(-) gt NH_(3)`
`Br^(-) gt CN^(-) gt NH_(3) gt C_(6)H_(5)^(-)`

ANSWER :C


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