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Sucrose

Which one of ...

Question

Which one of the following sets of monosaccharides forms sucrose?

α - D -

galactopyranose and

α - D -

glucopyranose

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α - D -

glucopyranose and

β - D -

fructofuranose

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β - D -

glucopyranose and

β - D -

fructofuranose

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α - D -

glucopyranose and

β - D -

fructopyranose

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Solution

The correct option is B $α - D -$ glucopyranose and $β - D -$ fructofuranose
Answer:- (B) $α$ -D-glucopyranose and $β$ -D-fructofuranose
The two monosaccharides are held together by a glycosidic linkage between $C - 1$ of $α$ -D-glucopyranose and C-2 of $β$ -D-fructofuranose.

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