Which of the following gylcosidic linkage is present in sucrose?

Gylcoside linkage between

C_{1}

of glucose and

C_{2}

of fructose

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Gylcoside linkage between

C_{1}

of fructose and

C_{2}

of glucose

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Gylcoside linkage between

C_{1}

and

C_{4}

of glucose

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Gylcoside linkage between

C_{1}

and

C_{4}

of fructose

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Solution

The correct option is A Gylcoside linkage between $C_{1}$ of glucose and $C_{2}$ of fructose
Sucrose on hydrolysis gives $α$ -D- glucose and $β$ -D-fructose.
Sucrose is a non-reducing sugar which means it does not have a hemiacetal group in the sucrose. Then, both the $O H$ group at the anomeric carbon of glucose and fructose forms gylcosidic linkage.
Hence, it the $C_{1}$ of glucose and $C_{2}$ of fructose.

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