Millionaire Mode

Nuclear and Solid State Chemistry

Question 1 of 15

Carbon-14 (half-life of 5760 years) is used to determine the age of fossils. A sample contains 200 mg of C-14. How long will it take to reduce C-14 in the sample to 25 mg?

  1. 5760 years
  2. 11520 years
  3. 17280 years
  4. 23040 years
  5. 28800 years

Prize Money

15₹7 Crores
14₹1 Crore
13₹50,00,000
12₹25,00,000
11₹12,50,000
10₹6,40,000
9₹3,20,000
8₹1,60,000
7₹80,000
6₹40,000
5₹20,000
4₹10,000
3₹5,000
2₹2,000
1₹1,000