Which one of the following is a non-reducing carbohydrate?A. MaltoseB. – InterviewSolution

InterviewSolution

1.	Which one of the following is a non-reducing carbohydrate?A. MaltoseB. SucroseC. LactoseD. Ribose 5-phosphate
Answer» Correct Answer - B Sucrose is a disaccharide of glucose and fructose It is a non-reducing sugar as it do not contain any free anomeric carbon atom. Maltose is a disaccharide of 2 glucose units. Its first glucose residue cannot undergo oxidation, whereas, second residue can undergo oxidation because it has a reactive free anomeric carbon atom. Hence. It is a reducing sugar Lactose and ribose-5-phosphate are also reducing in nature due to the presence of a free ketonic or aildehyde group.

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