Q34 / 160 · TS EAMCET 2018 (05 May Shift 1) · Chemistry

Identify the non-reducing sugar from the following.

A
Maltose
Correct answer
B
Sucrose
C
Lactose
D
Glucose

Solution

Sucrose is made up of two monosaccharide glucose and fructose. These two monosaccharides are held together by glycosidic linkage between $C_1$ of glucose and $C_2$ of fructose. Since, reducing groups of glucose and

glycosidic bond formation and are not available for reducing reaction. Hence, sucrose is a non-reducing sugar. Hence, option (2) is correct.

Hence, the correct answer is option: 'B'.

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