Assertion :Two chlorine atoms are bound by a single bond. Reason: There is only one unpaired electron in the valence shell of chlorine.

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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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Two $C l$ atoms are bound by a single bond as they have only one unpaired electron in the valence shell or there is only one electron required in order to fulfil the octet of valence shell of $C l$ . Hence, they contribute the unpaired electron stabilizing each other.

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