Assertion :Among all elements of the Group-16, sulphur has the largest tendency to catenation. Reason: Sulphur-Sulphur bond energy is very high.

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.
Sulphur naturally occur in nature as $S_{8}$ molecule.Sulphur-Sulphur bond energy is very high.
Hence, of all the elements of the Group-16, sulphur has the largest tendency to catenation.
Oxygen has little tendency for catenation. On moving down the group, the catenation tendency decreases from S to Po.
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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