Assertion :Glucose and fructose both reduce Schiff's reagent Reason: Both have free carbonyl group

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 D Both Assertion and Reason are incorrect
Glucose gives a negative test with Schiff's reagent. This is because cyclic hemiacetal is formed between an aldehyde group and $- O H$ group. Hence, aldehyde group is not free.
Both glucose and fructose do not have a free carbonyl group.
Hence, both Assertion and Reason are incorrect.

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