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The ion that is isoelectronic with CO is...

The ion that is isoelectronic with `CO` is

A

`O_2^-`

B

`N_2^+`

C

`O_2^+`

D

`CN^-`

Text Solution

Verified by Experts

The correct Answer is:
D
Isoelectronic species are having same number of electrons .
Number of electrons in CO=6+8=14
Number of electrons in `O_2^+`=16+1=17
Number of electrons in `N_2^+`=14-1=13
Number of electrons in `O_2^+`=16-1=15
Number of electrons in `CN^-`=6+7+1=14
Hence, CO isoelectronic with `CN^-` ion.
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