Home
Class 12
CHEMISTRY
In a first order reaction, the concentra...

In a first order reaction, the concentration of the reactant decreases form `0.8 M` to `0.4 M` in `15 min`. The time taken for the concentration to change form `0.1 M` to `0.025 M` is

A

60 min

B

15 min

C

7.5 min

D

30 min

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • MHTCET 2019 PAPER 2

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise CHEMSITRY|50 Videos

  • MOCK TEST 2

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MCQs|50 Videos

Similar Questions

Explore conceptually related problems

In a first order reaction, the concentration of the reactant, decreases from 0.8 M to 0.4 M in 15 minutes. The time taken for the concentration to change form 0.1 M to 0.025 M is :

In a first order reaction, the concentration of the reactant, decreases from 0.8 M to 0.4 M in 15 minutes. The time taken for the concentration to change from 0.1 M to 0.025 M is -

In a first order reaction, the concentration of the reactant decreases from 0.6 M to 0.3 M in 30 minutes. The time taken for the concentration to change from 0.1 M to 0.025 M is

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-MOCK TEST 1-MCQs
  1. Which of the following is not correct about the solution when moderate...

    Text Solution

    |

  2. Polyphosphates are used for softening agents because they

    Text Solution

    |

  3. An organic compound (A) contatns 20% C, 46.66% N and 6.66% H. It gave ...

    Text Solution

    |

  4. Hydrocarbons are formed when aldehydes and ketones are reduced with am...

    Text Solution

    |

  5. A compound CuCl has face - centred cubic structure. Its density is 3.4...

    Text Solution

    |

  6. An endotthermic reaction is non-spontaneous at freezing point of water...

    Text Solution

    |

  7. What weight of copper will be deposited by passing 2 faradays of elect...

    Text Solution

    |

  8. Two moles of an ideal gas is expanded isothermally and reversibly from...

    Text Solution

    |

  9. The enthalpy of vaporisation of a liquid is 30 kJ mol^(-1) and entropy...

    Text Solution

    |

  10. For a reaction 1//2A to 2B, rate of disappearance of A is related to t...

    Text Solution

    |

  11. In a first order reaction, the concentration of the reactant decreases...

    Text Solution

    |

  12. Stability of which intermediate is not governed by hyperconjugation?

    Text Solution

    |

  13. Aniline is an activated system for electrophilic substitution The comp...

    Text Solution

    |

  14. Chargaff' a rule states that in an organism:

    Text Solution

    |

  15. p-chloro aniline and anilinium hydrochloride can be distinguished by

    Text Solution

    |

  16. During reduction of aldehydes with hydrazine and potassium hydroxide, ...

    Text Solution

    |

  17. On hydrolysis of starch, we finally get

    Text Solution

    |

  18. Which of the following can possibly to used as analgesic without causi...

    Text Solution

    |

  19. Which of the following has magnesium?

    Text Solution

    |

  20. An alkyl bromine , RBr of molecular weight 151 is the exclusive produc...

    Text Solution

    |