JEE Main 2026 — Biomolecules Question with Solution
JEE Main 2026 (06 April Shift 1)
Question
Sucrose hydrolyses in acidic medium into glucose and fructose by first order rate law with hour. The percentage of sucrose remaining after hours is _______. (Nearest integer) (Given: and )
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Show full solutionCorrect answer: 25
Correct answer
25
Step-by-step explanation
For a first order reaction, the amount of reactant remaining after half-lives is given by .
Given hours and total time hours.
Number of half-lives, .
The amount of sucrose remaining is .
Percentage of sucrose remaining .
Answer:
Given hours and total time hours.
Number of half-lives, .
The amount of sucrose remaining is .
Percentage of sucrose remaining .
Answer:
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This is a previous-year question from JEE Main 2026, 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.