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Resonance

The nitrite i...

Question

The nitrite ion in represented by:

(I) $[O - N = O]^{-}$
(II) $[N = O - O]^{-}$

Which of the structures represents possible resonance forms of this ion ?

Only I

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Only II

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Both I and II

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Neither I and II

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Solution

The correct option is A Only I
In structure II, position of $N$ is changed which is not allowed in resonance. Structure I is correct as it follows the rule of resonance.

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