Assertion :Superoxides contain the $O_{2}^{-}$ ion which has one unpaired electron. Reason: Superoxides contain the $O_{2}^{-}$ ion which has one unpaired electron in its antibonding orbital.

Assertion is true, Reason is true and Reason is correct explanation for Assertion

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Assertion is true, Reason is true and Reason is NOT the correct explanation for Assertion

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Assertion is true, Reason is false

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Assertion is false, Reason is true

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Solution

The correct option is A
Assertion is true, Reason is true and Reason is correct explanation for Assertion

Superoxide contains $O_{2}^{-}$ with unpaired electron in pi antibonding molecular orbital. Hence, it is paramagnetic in nature. It has bond order of $1.5$
Thus, ssertion is true, Reason is true and Reason is correct explanation for Assertion.

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Similar questions

Q. Assertion :Superoxides of alkali metals are paramagnetic. Reason: Superoxides contain

O_{2}

ion which has one unpaired electron.

In the following questions a statement of assertion (A) followed by a statement of reason (R) is given. Choose the correct answer out of the following choices.
(a) Assertion and reason both are true, reason is correct explanation of assertion.
(b) Assertion and reason both are true but reason is not the correct explanation of assertion.
(c) Assertion is true, reason is false.
(d) Assertion is false, reason is true.

Assertion (A) $[F e (C N)_{6}]^{3 -}$ ion shows magnetic moment corresponding to two unpaired electrons.
Reason (R) Because it has $d^{2} s p^{3}$ type hybridisation.