The species showing resonating structure are:

H C O O^{-}

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H C O O H

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{N O}_{2}

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{S O}_{3}

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Solution

The correct options are
A $H C O O^{-}$
B ${N O}_{2}$
D ${S O}_{3}$
The species showing resonating structure are $H C O O^{-}$ , ${N O}_{2}$ and ${S O}_{3}$ .
$H C O O H$ does not shows resonating structure:The first Lewis structure is reasonable, but the second one, with three bonds and a lone pair on an oxygen atom, is not considered a reasonable resonance structure. Therefore, there is no significant resonance for formic acid, and the first Lewis structure above is the best description of its structure.

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Similar questions

S O_{3}

N O_{2}

S O_{3}, N O_{2}

{N O_{3}}^{-}

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N O_{2}

Give the resonating structures of $N O_{2}$ and $N_{2} O_{5}$ .

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