JEE Main Chemistry question

Which of the following reagents is used to identify fructose?

(A)Neutral
(B) / alc. KOH
(C)Ammoniacal Correct
(D)Iodine

Answer: (C)

Solution

Fructose, through its enediol tautomer, is able to reduce ammoniacal silver nitrate (Tollens' reagent), giving a positive silver-mirror test that identifies it as a reducing sugar. Neutral FeCl₃ (used for

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Question ID VK-150781