Biomolecules Question 118
Question: Which of the following pairs give positive Tollen’s test-
Options:
A) Glucose, sucrose
B) Glucose, fructose
C) Hexanal, acetophenone
D) Fructose, sucrose
Show Answer
Answer:
Correct Answer: B
Solution:
[b] Glucose contains aldehyde group, positive Tollen’s test. Fructose although contains ketone group, undergoes a rearrangement to form glucose and mannose which then responds to Tollen’s test.