The isoelectronic pair is

Options

A. `Cl_(2)O,ICl_(2)^(-)`
B. `ICl_(2)^(-),ClO_(2)`
C. `IF_(2)^(+),I_(3)^(-)`
D. `ClO_(2)^(-),ClF_(2)^(+)`

Answer

D

Explanation

Number of electrons in `ClO_(2)^(-)`
`rArr17+8+8+1=34`
Number of electrons in `ClF_(2)^(+)`
`rArr17+9+9-1=34`.