Home
Class 11
CHEMISTRY
C^(14) has a half- life of 5760 years. 1...

`C^(14)` has a half`-` life of 5760 years. `100mg` of the sample containing `.^(14)C` is reduced to `25mg` in a)11520years b)2880years c)1440years d)17128years

A

11.520yrs

B

2880 yrs

C

1440 yrs

D

17280 yrs

Text Solution

Verified by Experts

The correct Answer is:
A

`N=(N_(0))/(2^(n))`
Promotional Banner

Topper's Solved these Questions

  • NUCLEAR AND RADIO CHEMISTRY

    DINESH PUBLICATION|Exercise Selected Straight Objected Type MCQs|26 Videos
  • NUCLEAR AND RADIO CHEMISTRY

    DINESH PUBLICATION|Exercise Linked Comprehension Type MCQs|9 Videos
  • NUCLEAR AND RADIO CHEMISTRY

    DINESH PUBLICATION|Exercise Evaluate Yourself|45 Videos
  • NOMENCLATURE OF ORGANIC COMPOUNDS

    DINESH PUBLICATION|Exercise MCQs|13 Videos
  • ORGANIC CHEMISTRY - SOME BASIC PRINCIPLES & TECHNIOUES

    DINESH PUBLICATION|Exercise PURIFICATION & CHARACTERISATION OF ORGANIC COMPOUNDS|38 Videos

Similar Questions

Explore conceptually related problems

20 mg of C-14 has half-life of 5760 yr. 100 mg of sample containing C-14 is reduced to 25 mg in

The half life of radium is 1600 years. After how much time will 1 g radium be reduced to 125 mg ?

The half life of radium (226) is 1620 years. The time takend to convert 10 g of radium to 1.25 g is a. 810 years b. 1620 years c. 3240 years d. 4860 years

Tritium has a half-life of 12.5 years. What fraction of the sample will remain undecayed after 50 years?

Half - life for radioactive .^(14)C is 5760 years. In how many years 200 mg of .^(14)C will be reduced to 25 mg ?

The isotope ._6^(14)C is radioactive and has a half-life of 5730 years . If you starts with a sample of 1000 carbon -14 niclei, how many will still be around in 17,190 years ?

DINESH PUBLICATION-NUCLEAR AND RADIO CHEMISTRY-Revision Questions from Competitive Exams
  1. Which of the following does not contain material particle

    Text Solution

    |

  2. Radioactive is due to

    Text Solution

    |

  3. C^(14) has a half- life of 5760 years. 100mg of the sample containing ...

    Text Solution

    |

  4. The reaction .(1)D^(2) + .(1)T^(3) rarr .(2)He^(4) + .(0)n^(1) is ...

    Text Solution

    |

  5. A radioactive isotope decays at such a rate that after 96 min, only 1/...

    Text Solution

    |

  6. Which of the following is used as neutron absorber in the nuclear reac...

    Text Solution

    |

  7. Insert the missing figure in the following .(25)Mn^(55) (n, gamma) rar...

    Text Solution

    |

  8. The half life of a radioactive element is 30 min. One sixteenth of th...

    Text Solution

    |

  9. If the amount of radioactive substance is increased three times, the n...

    Text Solution

    |

  10. A radioactive sample has half life of 1500 years. A sealed tube contai...

    Text Solution

    |

  11. In nuclear reaction .(4)Be^(9)+.(2)He^(4)rarr.(6)C^(12)+X,X will be

    Text Solution

    |

  12. In a radioactive decay, an emitted electron comes from

    Text Solution

    |

  13. Which of the following statements is wrong ?

    Text Solution

    |

  14. Half life of radioactive element is 100 yrs. The time in which it disi...

    Text Solution

    |

  15. Energy released in the nuclear fusion reaction is : ""(1)^(2)H + ""(1...

    Text Solution

    |

  16. Positron has mass equal to

    Text Solution

    |

  17. Which of the following is (n,) type rection ?

    Text Solution

    |

  18. Half life of a radioactive substance is 60 min. After 3 hours, the fra...

    Text Solution

    |

  19. In radioactive transformation ""(92)U^(235) to ""(82)Pb^(206) , the nu...

    Text Solution

    |

  20. Which of the following statements is false ?

    Text Solution

    |