Assertion :Super oxide ion is paramagnetic whereas peroxide ion is diamagnetic. Reason: Super oxide ion has one unpaired electron whereas per oxide ion has no unpaired electron.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Super oxide ion has one unpaired electron whereas per oxide ion has no unpaired electron, hence super oxide is paramagnetic.

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Similar questions

Q. Assertion :Statement

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1 : Super oxide ion is paramagnetic whereas peroxide ion is diamagnetic. Reason: Statement

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2 : Super oxide ion has one unpaired electron whereas per oxide ion has no unpaired electron.

Q. Assertion : Two electrons of helium atom are placed in only one shell but three electrons of lithium need two shells.
Reason: A shell can have maximum

{2n}^{2}

electrons.

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.