NEET 2010
- Exam
- NEET
- Year
- 2010
- Subject
- Chemistry
- Chapter
- Biomolecules
NEET 2010 · Chemistry · Biomolecules
Which one of the following does not exhibit the phenomenon of...
Which one of the following does not exhibit the phenomenon of mutarotation?
Options
- A(+) Sucrose
- B(+) Lactose
- C(+) Maltose
- D(-) Fructose
Correct answer
A. (+) Sucrose
Step-by-step solution
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.