JEE Main Chemistry question

Which of the following is the first member of monosaccharides?

(A)
(B)Correct
(C)
(D)

Answer: (B)

Solution

The simplest possible monosaccharide (triose) is a 3-carbon sugar. Option (a) dihydroxyacetone is a ketotriose but is not considered the "first" monosaccharide because it lacks a chiral centre; option (b) glyceraldehyde, , is the simplest

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Question ID VK-150571