JEE Main 2021 — Biomolecules Question with Solution
JEE Main 2021 (25 Feb Shift 1)
Question
Which of the glycosidic linkage between galactose and glucose is present in lactose?
Choose an option
Show full solutionCorrect option: C
Correct answer
C of galactose and of glucose
Step-by-step explanation
Lactose is composed of a molecule of galactose joined to a molecule of glucose by a β-1,4-glycosidic linkage. It is a reducing sugar that is found in milk.
In lactose linkage is formed between of galactose and of glucose.
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Biomolecules chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2021, covering the Biomolecules chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.