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Question

A disaccharide that gives two molecules of glucose on hydrolysis is

A
Sucrose
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B
Maltose
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C
Lactose
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D
Both B and C
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Solution

The correct option is B Maltose
Maltose is the disaccharide which is formed by the linkage of 2 glucose residues by an alpha 1,4 linkage. Upon hydrolysis, the glycosidic bond is broken and maltose yields 2 glucose residues. On the other hand, the disaccharide; Sucrose yields glucose and fructose and lactose yields glucose and galactose. So, the correct answer is option B.

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