Home
Class 12
CHEMISTRY
A 300 gram radioactive sample has life o...

A 300 gram radioactive sample has life of 3 hour's After 18 hour's remaining quantity will be:

A

4.68 gram

B

2.34 gram

C

3.34 gram

D

9.37 gram

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION D : Assertion - Reason Type Questions)|15 Videos

  • CHEMICAL KINETICS

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION B : Objective Type Questions)|20 Videos

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    AAKASH INSTITUTE|Exercise Assignment Section J (Aakash Challengers Questions)|10 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    AAKASH INSTITUTE|Exercise Assignment ( SECTION - A)|45 Videos

Similar Questions

Explore conceptually related problems

A radioactive substance has an average life of 5 hours. In a time of 5 hours

A radioactive substance has a half life of 60 minutes. After 3 hours, the fraction of atom that have decayed would be.

If half-life of a radioactive element is 3 hours. After 9 hours its activity becomes

Let two radioactive substances have half-lives of 15 hours and 20 hours. At a given instant, the ratio of amount of radioactive substance is 2:1. The ratio of the quantities of the substances after 60 hours will be

A freshly prepared radioactive sample of half life 1 hour emits radiations that are 128 times as intense as the impossible safe limit. The minimum time after which this sample can be safely used is

AAKASH INSTITUTE-CHEMICAL KINETICS-ASSIGNMENT (SECTION C : Previous Year Questions)
  1. The given elementary reaction 2FeCl3+SnCl2rarr2FeCl2+SnCl4 is an examp...

    Text Solution

    |

  2. Carbon 14 dating method is based on the fact that

    Text Solution

    |

  3. For the reaction H(2)(g)+I(2)(g) hArr 2HI(g), the rate of reaction is ...

    Text Solution

    |

  4. The experiment data for the reaction 2A + B(2) rarr 2AB is |{:("Expe...

    Text Solution

    |

  5. Activation energy of a chemical reaction can be determined by

    Text Solution

    |

  6. For a first order reaction, the half-life period is independent of

    Text Solution

    |

  7. The half - life of .6C^(14) , if its lamda is 2.31 xx10^(-4) " year"^(...

    Text Solution

    |

  8. A 300 gram radioactive sample has life of 3 hour's After 18 hour's rem...

    Text Solution

    |

  9. Enzymes enhance the rate of reaction by

    Text Solution

    |

  10. For the reaction, 2N(2)O(5)to4NO(2)+O(2) rate and rate constant are 1....

    Text Solution

    |

  11. A human body required the 0.01 M activity of radioactive substance aft...

    Text Solution

    |

  12. When a biochemical reaction is carried out in laboratory from outside ...

    Text Solution

    |

  13. 2A+2C rarr2B, rate of reaction (+d(B))/(dt) is equal to

    Text Solution

    |

  14. 2A rarrB +C It would be a zero order reaction when

    Text Solution

    |

  15. The activation energy for a simple chemical reaction A rarr B is E(a) ...

    Text Solution

    |

  16. The reaction A toB follows first order reaction. The time taken for 0....

    Text Solution

    |

  17. If the rate of the reaction is equal to the rate constant , the order ...

    Text Solution

    |

  18. The temperature dependence of rate constant (k) of a chemical reaction...

    Text Solution

    |

  19. The radioisotope , tritium (""(1)^(3)H) has a half-life of 12.3 years....

    Text Solution

    |

  20. The rate of a first order reaction is 1.5xx10^(-2) and L^(-1) "min"^(-...

    Text Solution

    |