Q. How can you say that glucose is cyclic compound?
A) Glucose undergoes Tollen’s reaction
B) Glucose reacts with phenyl hydrazine
C) Glucose fails to react with sodium hydrogen sulphite
D) Glucose reacts with nitric acid
Explanation
(c)
Despite having, the aldehyde group, glucose does not give, 2, 4-DNP test, Schiff’s test and it does not form the hydrogen sulphite addition product with ${NaHSO}_{3}.$ It shows that glucose is a cyclic compound.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.