JEE Main 2025ChemistryBiomoleculesMediumMCQ

JEE Main 2025Biomolecules Question with Solution

JEE Main 2025 (28 Jan Shift 1)

Question

Given below are two statements: Statement I : D-glucose pentaacetate reacts with 2, 4-dinitrophenylhydrazine Statement II : Starch, on heating with concentrated sulfuric acid at and 2-3 atmosphere pressure produces glucose. In the light of the above statements, choose the correct answer from the options given below

Choose an option

Show full solutionCorrect option: A
Correct answer
AStatement I is false but Statement II is true

Step-by-step explanation

- D-glucose pentaacetate do not react with 2.4 DNP - Starch 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 2025, 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.