JEE Main Chemistry question

Which statement about ribose is incorrect?

(A)A polyhydroxy compound
(B)An aldehyde sugar
(C)Has six carbon atomsCorrect
(D)Exhibits optical activity

Answer: (C)

Solution

Ribose, CHO-(CHOH)_3-CH_2OH, is an aldopentose with five carbon atoms, not six, so the statement "has six carbon atoms" is incorrect. It genuinely is a polyhydroxy

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Question ID VK-151050