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Arrange the following in order of decrea...

Arrange the following in order of decreasing N - O bond length `NO_(2)^(-),NO_(2)^(-),NO_(3)^(-)`

A

`NO_(3)^(-) gt NO_(2)^(+) gt NO_(2)^(-)`

B

`NO_(3)^(-) gt NO_(2)^(-) gt NO_(2)^(-)`

C

`NO_(2)^(-) gt NO_(3)^(-) gt NO_(2)^(-)`

D

`NO_(2)^(-) gt NO_(3)^(-) gt NO_(2)^(+)`

Text Solution

Verified by Experts

The correct Answer is:
b

N atom in `NO_(2)^(-)` is sp hydridised white in `NO_(2) ` and `NO_(3)^(-)` it is `sp^(2)`


Bond `= (1)/("Bond Length")`
So Bond length order is `NO_(3)^(-) NO_(2)^(-) gt NO_(2)^(-)`
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