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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3pn072

Select the correct statement(s) about ozone.

AThe molecule is bent and the two O-O bonds are of equal length because of resonance
BIn neutral KI solution it liberates iodine, $O X_{3} + 2 I X^{-} + H X_{2} O I X_{2} + O X_{2} + 2 OH X^{-}$
CChlorine radicals from chlorofluorocarbons can destroy stratospheric ozone catalytically
DIt is paramagnetic

Answer: A, B, C

Ozone is a resonance hybrid of two canonical structures with equal O-O bonds (128 pm). It oxidises iodide to iodine and Cl radicals from CFCs catalyse its decomposition. All its electrons are paired, so it is diamagnetic and D is wrong.

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