Identify sugar which doesn't give silver mirror test with Tollen's reagent $(A g N O_{3} + N H_{4} O H)$ ?

Fructose

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Maltose

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Lactose

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Sucrose

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D Sucrose
Carbohydrates having free aldehyde group or free ketone group or comprising hemiacetal form in the structure are reducing in nature. They gives positive test with tollens' reacgent.

Anomeric carbons of both the monosaccharides of sucrose are involved in glycosidic linkage. So, its chemical structure does not allow the formation of hemiacteal.

Suggest Corrections