JEE Main 2004 — Chemical Kinetics Question with Solution
JEE Main 2004
Question
In first order reaction, the concentration of the reactant decreases from to in 15 minutes. The time taken for the concentration to change from to is
Choose an option
Show full solutionCorrect option: A
Correct answer
A30 minutes
Step-by-step explanation
minutes
No. of half lives
( for change of to ) is 30 minutes
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This is a previous-year question from JEE Main 2004, covering the Chemical Kinetics 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.