Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Search any question & find its solution
Question: Answered & Verified by Expert
If half-life of a substance is 5 yrs, then the total amount of substance left after 15 years, when initial amount is 64 grams is
ChemistryChemical KineticsJEE MainJEE Main 2002
Options:
  • A
    16 grams
  • B
    2 grams
  • C
    32 grams
  • D
    8 grams
Solution:
1947 Upvotes Verified Answer
The correct answer is:
8 grams

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.