JEE Main 2022 — Biomolecules Question with Solution
From: JEE Main 2022 (Online) 29th July Evening Shift
Question
Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Amylose is insoluble in water.
Reason R: Amylose is a long linear molecule with more than 200 glucose units.
In the light of the above statements, choose the correct answer from the options given below.
Choose an option
Show full solutionCorrect option: D
Step-by-step explanation
Let's analyze the given statements:
Assertion A: "Amylose is insoluble in water." This statement is incorrect. Amylose is actually soluble in water, although its solubility is lower compared to other carbohydrates like amylopectin.
Reason R: "Amylose is a long linear molecule with more than 200 glucose units." This statement is correct, as amylose is indeed a linear polysaccharide made up of glucose units.
Given this information, the correct option is:
Option D: is not correct but is correct.
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This is a previous-year question from JEE Main 2022, 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.