Which of the following is a reducing sugar?
Correct answer: A. Galactose
- A. Galactose
- B. Gluconic acid
- C. B-methyl galactoside
- D. Sucrose
Explanation
All those sugars which have free aldehyde or ketone group are called reducing sugars. These are able to reduce cupric ions (Cu+2) into cuprous ions (Cu+). Sucrose and starch are non-reducing sugars.
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