When sugar 'X' is boiled with dilute H_ 2 SO_ 4 in alcoholic solution, two isomers 'A' and 'B' are formed. 'A' on oxidation with HNO_ 3 yields saccharic acid whereas 'B' is laevorotatory. The compound 'X' is :

JEE Main 2022 Chemistry question

When sugar 'X' is boiled with dilute in alcoholic solution, two isomers 'A' and 'B' are formed. 'A' on oxidation with yields saccharic acid whereas 'B' is laevorotatory. The compound 'X' is :

(1)Maltose
(2)SucroseCorrect
(3)Lactose
(4)Starch

Answer: (2)

Solution

Sucrose on hydrolysis (dilute ) gives D-(+)-glucose (A) and D-(−)-fructose (B).

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Question ID VK-034854