Biomolecules Question 203
Question: What will happen when D-(+)-glucose is treated with methanolic $ -HCl $ followed by Tollens’ reagent-
Options:
A) A black ppt. will be formed
B) A red ppt. will be formed
C) A green colour will appear
D) No characteristic colour or ppt. will be formed.
Show Answer
Answer:
Correct Answer: D
Solution:
[d] Reaction of D-(+)-glucose with methanolic $ HCl $ leads to formation of methyl glucoside ( $ C_1-OH $ group is methylated) which, being acetal, is not hydrolysable by base, so it will not respond Tollen’s reagent.
BETA
