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Question: Which one of the following sets of monosaccharides forms sucrose?...

Which one of the following sets of monosaccharides forms sucrose?

A

α−D−\alpha - D - galactopyranose and β−D−\beta - D - Glucopyranose

B

α−D−\alpha - D - Glucopyranose and β−D−\beta - D - fructofuranose

C

β−D−\beta - D - glucopyranose and fructofuranose

D

glucopyranose and β−D−\beta - D - fructopyranose.

Answer

α−D−\alpha - D - Glucopyranose and β−D−\beta - D - fructofuranose

Explanation

Solution

Sucrose is formed by the condensations of α−\alpha -D – glucopyranose and β−D−\beta - D - fructofuranose.