Which of the following is not a reducing sugar?: (A) Fructose, (B) Galactose, (C) Sucrose, (D) Maltose
Answer is C. Sucrose contains glucose and fructose .sucrose is not a reducing sugar, and it will not form osazone. is because the linkage involves first carbon of glucose and second carbon of fructose, and free reducing groups are not available.Ref: DM Vasudevan, 7th edition, page no: 77