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What will happen when D-(+)- glucose is ...

What will happen when `D-(+)-` glucose is treated with methanolic `HCl` followed by Tollen's reagent ?

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.

Text Solution

Verified by Experts

The correct Answer is:
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.
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