WBJEE 2013 Chemistry Solved Paper

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Question : 4 of 60

Marks: +1, -0

The half-life for decay of

14

‌

C by β-emission is 5730 years. The fraction of

14

‌

C decays, in a sample that is 22,920 yearsold, would be

1/8
1/16
7/8
15/16

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