Among the following, molecules exhibiting resonance are

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HNO₃

${SO}_{2}$

${CO}_{3}^{2 -}$

AsF₅

answer is A, B, C.

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Detailed Solution

Resonance structures are a group of two or more Lewis structures that collectively represent a single polyatomic species electronic bonding including fractional bonds and fractional charges.

AsF₅ does not exhibit resonance; the fact being

(i) There are no double bonds.

(ii) The lone pairs of electrons on the Fluorine atom does not take part in resonance.

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