Question

Assertion (A): Maltose is a reducing sugar.
Reason (R): One of the two glucose units can open to expose free aldehydic group in solution.

• A. Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
• B. Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
• C. Assertion (A) is true, but Reason (R) is false.
• D. Assertion (A) is false, but Reason (R) is true.

Hint:

Reducing sugars must have a free aldehyde or ketone group available.

Answer 1

The Correct Option is A

Both are true. Maltose is a reducing sugar because one glucose unit has a free hemiacetal group that can open to expose an aldehyde in solution.