Assertion : $K O_{2}$ is paramagnetic. Reason: $K^{+}$ ion has 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 C Assertion is correct but Reason is incorrect
$K O_{2}$ is paramagnetic due to the unpaired electron in its mixed orbitals.

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Choose the correct option.

Assertion – The non-fusible impurities present in iron ore are removed by $C a C O_{3}$ .

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