Key Idea:- Reducing sugars that exist in hemiacetal and hemiketal forms, undergo mutarotation in aqueous solution. Among the given carbohydrates, only sucrose is a non-reducing sugar as in it the hemiacetal and hemiketal groups of glucose and fructose are linked together through O-atom and thus, not free. Due to the absence of free hemiacetal or hemiketal group, sucrose does not exhibit mutarotation.
Which one of the following does not exhibit the phenomenon of mutarotation?
NEET UG 2010 — Chemistry Organic Chemistry
2010mcqeasy
Which one of the following does not exhibit the phenomenon of mutarotation?
Official previous-year question
Held on 30 Apr 2010 · Verified 9 Jul 2026.
Options
- A
(+) Sucrose
- B
(+) Lactose
- C
(+) Maltose
- D
(-) Fructose
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