Assertion :There is a relationship between the ability of a sugar to mutarotate and to reduce Tollens reagent. Reason: The reduction of Tollens reagent and mutarotate both depend on the presence of free carbonyl form.

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
When sugar contains free carbonyl group, it can mutarotate and reduce Tollens reagent. Free carbonyl group can be present in the form of hemiacetal/ hemiketal but it should not be involved in glycosidic bond formation. Also $- O H$ group of hemiacetal/ hemiketal should not be methylated or alkylated.

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