Question

Assertion (A): Glucose does not form the hydrogensulphite addition product with \[\ce{NaHSO3}\].

Reason (R): Glucose exists in a six-membered cyclic structure called the pyranose structure.

Select the most appropriate answer from the options given below:

Options

• Both A and R are true and R is the correct explanation of A.

• Both A and R are true but R is not the correct explanation of A.

• A is true but R is false.

• A is false but R is true.

Answer 1

Both A and R are true but R is not the correct explanation of A.

Explanation:

Both A and R are true but R is not the correct explanation of A. Due to the absence of a free aldehydic group, it does not give a reaction with \[\ce{NaHSO3}\].