1.

Which of the following is isoelectronic pair ?

Answer»

`ICl_(2), ClO_(2)`
`BrO_(2)^(-), BrF_(2)^(+)`
`ClO_(2), BrF`
`CN^(-), O_(3)`

SOLUTION :Both `BrO_(2)^(-) (35 + 2 xx 8 + 1 = 52) and BrF_(2)^(+) (35 + 2 xx 9 - 1 = 52)` have 52 electrons.


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