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JEE · NEET Previous Year Question

$Which one of the following sets of monosaccharides forms sucrose?.$

Topic: NEET PYQ

Answer: B. Full step-by-step solution below.

A $α - D ‐galactopyranose and α - D ‐glucopyranose$
B $α - D ‐glucopyranose and β - D ‐fructofuranose$
C $β - D ‐glucopyranose and α - D ‐fructofuranose$
D $α - D ‐glucopyranose and β - D ‐fructopyranose.$

Correct answer: B

Solution

(b) Sucrose is formed by the condensation of α -D-glucopynanose and β - D - fructofuranose.

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