Home
Class 12
CHEMISTRY
A negative catalyst ......... the activa...

A negative catalyst ......... the activation energy.

Text Solution

Verified by Experts

increases
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    ICSE|Exercise EXERCISE (PART- I (OBJECTIVE QUESRTIONS)B.COMPLE THE FOLLOWING STATEMENTS BY SELECTING THE CORRECT ALTERNATIVE FROM THE CHOICES GIVEN ) |105 Videos

  • CHEMICAL KINETICS

    ICSE|Exercise EXERCISE (PART- I (OBJECTIVE QUESRTIONS) C. CORRECT THE FOLLOWING STATEMENTS BY CHANGING THE UNDERLINED PART OF THE STATEMENT ( DO NOT CHANGE THE WHOLE SENTENCE .)) |39 Videos

  • CHEMICAL KINETICS

    ICSE|Exercise INTEXT QUESRTIONS|81 Videos

  • BIOMOLECULES

    ICSE|Exercise ISC EXAMINATION QUSTIONS (PART-I)(DESCRIPTIVE QUESTIONS)|21 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    ICSE|Exercise EXERCISE (PART - II (DESCRIPTIVE QUESTIONS) (LONG ANSWER QUESTIONS))|19 Videos

Similar Questions

Explore conceptually related problems

Activation energy is:

Threshold energy is always ....... than activation energy.

A negative catalyst will :

What is activation energy.

Assertion (A): Poistive catalyst lowers the activation energy of the reaction whereas the heat of reaction remains same. Reason (R ): The heat of reaction is equal to the difference between activation energies for forward and backward reactions.

Discuss the effect of catalyst on the activation energy.

A poistive catalyst increases the activation energy of the reaction.

What is activation energy ?

ICSE-CHEMICAL KINETICS-EXERCISE (PART- I (OBJECTIVE QUESRTIONS)A.FILL IN THE BLANKS)
  1. The unit of the rate of reaction is ............ and the unit of first...

    Text Solution

    |

  2. In most reactions, the rate of reaction doubles or triples for ...... ...

    Text Solution

    |

  3. A negative catalyst ......... the activation energy.

    Text Solution

    |

  4. The order of a reaction rarely exceeds ...........

    Text Solution

    |

  5. The order of reaction may ......... same as molecularity of the same r...

    Text Solution

    |

  6. Threshold energy is always ....... than activation energy.

    Text Solution

    |

  7. The rate of reaction ........ with increase in temperature.

    Text Solution

    |

  8. The temperature coefficient of a reaction is the ratio of the rate con...

    Text Solution

    |

  9. The second order reaction becomes first order if one of reactants is ....

    Text Solution

    |

  10. Threshold energy minus the energy which the molecules actually possess...

    Text Solution

    |

  11. The hydrolysis of ethyl acetate in ........ medium is...... order reac...

    Text Solution

    |

  12. .......... of molecules containing more than activation energy is indi...

    Text Solution

    |

  13. Which reaction order obeys the expression T(1//2) = 1/(K .A ) in chem...

    Text Solution

    |

  14. A catalyst decreases .......... of a reaction.

    Text Solution

    |

  15. For a relatively fast reaction, the rate constant is relatively………….an...

    Text Solution

    |

  16. Reaction with low activation energy are ............ and the reactions...

    Text Solution

    |

  17. Effective colliosions are those in which colloiding molecules must hav...

    Text Solution

    |

  18. In the equation k = A e^(-Ea//RT), the constant A is known as ...........

    Text Solution

    |

  19. The unit of the rate of reaction is ............ and the unit of first...

    Text Solution

    |

  20. In most reactions, the rate of reaction doubles or triples for ...... ...

    Text Solution

    |