JEE Main 2019 — Biomolecules Question with Solution
From: JEE Main 2019 (Online) 8th April Morning Slot
Question
Maltose on treatment with dilute HCI gives :
Choose an option
Show full solutionCorrect option: C
Correct answer
CD-Glucose
Step-by-step explanation
Maltose on treatment with dil. HCl gives D-glucose. Hydrolysis of
maltose yields two moles of - D-glucose. Thus, it is composed of two -D-glucose units in
which C-1 of one glucose unit (I) is linked to C-4 of another
glucose unit (II). The free aldehyde group can be produced at C-1
of second glucose in solution and it shows reducing properties.
So, it is a reducing sugar.
So, it is a reducing sugar.
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This is a previous-year question from JEE Main 2019, 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.