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The correct order of bond angle of NO(2)...

The correct order of bond angle of `NO_(2)^(+),NO_(2) and NO_(2)^(-)` is

A

`NO_(2)^(+) lt NO_(2)ltNO_(2)^(-)`

B

`NO_(2)^(-)ltNO_(2)lt NO_(2)^(+)`

C

`NO_(2)^(+)ltNO_(2)^(-)ltNO_(2)`

D

`NO_(2)ltNO_(2)^(+)ltNO_(2)^(-)`

Text Solution

Verified by Experts

The correct Answer is:
B
`NO_(2)^(+)` is linear molecule having bond angle of `180^(@)`.
`NO_(2)` has one unshared electron while `NO_(2)^(-)` has a lone pair of electrons. Therefore, lone pair causes more repulsion than unshared electron and therefore, bond angle is forced closer.
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