Question
Chemistry Question on Biomolecules
When sugar ‘X’ is boiled with dilute H2SO4 in alcoholic solution, two isomers ‘A’ and ‘B’ are formed. ‘A’ on oxidation with HNO3 yields saccharic acid whereas ‘B’ is laevorotatory. The compound ‘X’ is :
A
Maltose
B
Sucrose
C
Lactose
D
Starch
Answer
Sucrose
Explanation
Solution
The correct answer is (B) : Sucrose
Fig.
D-(–)-Fructose is a laevorotatory compound.