Home
Class 12
CHEMISTRY
A catalyst increases the rate of a chemi...

A catalyst increases the rate of a chemical reaction by

A

increasing the activation energy

B

decreasing the activation energy

C

increasing the average KE of the molecules

D

increasing the number of active molecules

Text Solution

Verified by Experts

The correct Answer is:
B, D
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    RC MUKHERJEE|Exercise PROBLEMS |42 Videos

  • CHEMICAL EQUIVALENCE

    RC MUKHERJEE|Exercise PROBLEMS|24 Videos

  • CHEMICAL THERMODYNAMICS

    RC MUKHERJEE|Exercise Objective problems|58 Videos

Similar Questions

Explore conceptually related problems

When a catalyst increases the rate of a chemical reaction, the rate constant

When a catalyst increases the rate of chemical reaction the rate constant :-

Catalyst increases the rate by

RC MUKHERJEE-CHEMICAL KINETICS-OBJECTIVE PROBLEMS
  1. For a given reaction, the half-life period was found to be directly pr...

    Text Solution

    |

  2. From different sets of data of t(1//2) at diifferent initial concentra...

    Text Solution

    |

  3. A catalyst increases the rate of a chemical reaction by

    Text Solution

    |

  4. The energy of activation of a forward reaction is 50 kcal . The energy...

    Text Solution

    |

  5. The rate constant , the activation energy and the Arhenius parameter o...

    Text Solution

    |

  6. Which of the following statements is wrong about reactions ?

    Text Solution

    |

  7. The temperature coefficient of a reaction is 2 . The rate of this reac...

    Text Solution

    |

  8. The rate constant of a reaction , A to Product , with initial reactant...

    Text Solution

    |

  9. The rate constant of a reaction , A to Product ,with initial reactant...

    Text Solution

    |

  10. The rate of reaction doubles when the concentration of the reactant is...

    Text Solution

    |

  11. When the concentration of a reactant , A in a reaction A to Products ...

    Text Solution

    |

  12. When the concentration of a reactant ,A to products , is doubled In fi...

    Text Solution

    |

  13. For a second -order reaction of the type underset (a-a) overset (a) (...

    Text Solution

    |

  14. 50 % of a zero order reaction completes in 10 minutes .100 % of the s...

    Text Solution

    |

  15. The rate constant ,k, of a second -order reaction ,A to Products is g...

    Text Solution

    |

  16. In which of the reaction of the following orders the molecularity and ...

    Text Solution

    |

  17. Which of the following curves represent(s) a zero-order reaction?

    Text Solution

    |

  18. A plot of reactant concentration versus time for a reaction is a strai...

    Text Solution

    |

  19. Conisder the chemical reaction N(2)(g) + 3H(2)(g) rarr 2NH(3)(g) T...

    Text Solution

    |

  20. If the rate constant for a reaction repreasented by 2HI rarr H(2)+I(2)...

    Text Solution

    |