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Fructose reduces Tollens' reagent due to (a) asymmetric carbons

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Fructose reduces Tollens' reagent due to

(a) asymmetric carbons

(b) primary alcoholic group

(c) secondary alcoholic group

(d) enolisation of fructose followed by conversion to aldehyde by base

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Correct option(d) enolisation of fructose followed by conversion to aldehyde by base

Explanation :

Under alkaline conditions of the reagent, fructose gets converted into a mixture of glucose and mannose (Lobry de Bruyn van Ekenstein rearrangement) both of which contain the -CHO group and hence reduce Tollens'reagent to give silver mirror test.

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