JEE Main 2007 — Chemical Kinetics Question with Solution
JEE Main 2007
Question
A radioactive element gets spilled over the floor of a room. Its half-life period is days. If the initial activity is ten times the permissible value, after how many days will it be safe to enter the room?
Choose an option
Show full solutionCorrect option: D
Correct answer
D days
Step-by-step explanation
Activity
Hence, (D) is correct.
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This is a previous-year question from JEE Main 2007, 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.