1.

The ion that is isoelectronic with CO is :

Answer»

`CN^(-)`
`O_(2)^(+)`
`N_(2)^(+)`
`O_(2)^(-)`

Solution :CO has 14 ELECTRONS `(6+8=14)` and `CN^(-)` has also 14 [`6(C )+7(N)+1` (charge)]electrons.


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