Home
Class 12
CHEMISTRY
A: Lesser the activation energy, greater...

A: Lesser the activation energy, greater is the rate of reaction
R: Activation energy of a reaction is independent of temperature

A

Both (A) and (R ) are true and (R ) is the correct explanation of (A)

B

Both (A) and (R ) are true and (R ) is not the correct explanation of (A)

C

(A) is true but (R ) is false

D

Both (A) and (R ) are false

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    AAKASH SERIES|Exercise Objective Exercise - 3 (Previous NEET/AIPMT Questions)|32 Videos

  • CHEMICAL KINETCS

    AAKASH SERIES|Exercise EXERCISE - 3.2|45 Videos

  • CHEMICAL THERMODYNAMICS

    AAKASH SERIES|Exercise Additional Practice Exercise|54 Videos

Similar Questions

Explore conceptually related problems

Activation energy depends on

The activation energy of a reaction can be determined by

The value of activation energy for a chemical reaction primarily depends on

The activation energy of a reaction is zero. The rate constant of the reaction:

The use of a catalyst in chemical reaction…activation energy of the reaction

Arrhenius studied the effect of temperature on the rate of a reaction and postulated that rate constant varies with temperature exponentially as k=Ae^(-E_(a)//RT) . For most of the reactions it was found that the temperature coefficient of the reaction lies between 2 to 3. The method is generally used for finding the activation energy of a reaction. Keeping temperature constant, the effect of catalyst on the activation energy has also been studied by studying how much the rate of reaction changes in the presence of catalyst. In most of the cases, it is observed that catalyst lowers the activationenergy barrier and increases the rate of reaction. If the rate oc reaction grwos 15.6 times on increasing the temperature by 30 K the temperature coefficient of the reaction will be nearly

How is the reaction rate influenced by energy of activation ?

According to collision theory of reaction rates, the activation energy is

AAKASH SERIES-CHEMICAL KINETICS-Objective Exercise - 4 (Assertion (A) & Reason (R) Type Questions)
  1. (A) All Ionic reactions are Instantaneous (R ) Ionic reactions do no...

    Text Solution

    |

  2. (A) Most of the molecular reactions occur with moderate rates (R ) M...

    Text Solution

    |

  3. (A) Units of rate of reaction are independent of order of the reaction...

    Text Solution

    |

  4. (A) A first order reaction is always unimolecular (R ) A unimolecula...

    Text Solution

    |

  5. (A) Acidic hydrolysis of ethyl acetate with excess water is a first o...

    Text Solution

    |

  6. (A) Decomposition of Ammonia on platinum surface at high pressure is a...

    Text Solution

    |

  7. (A) Radioactive disintegration process can never go to completion (R...

    Text Solution

    |

  8. (A) Alkaline hydrolysis of ethyl acetate follows first order kinetic ...

    Text Solution

    |

  9. (A) Rate of constant of a reaction increases with increase in temperat...

    Text Solution

    |

  10. (A) Presence of catalyst increases the rate of reaction (R ) Presenc...

    Text Solution

    |

  11. (A) The rate law of a reaction cannot be predicted from its balanced c...

    Text Solution

    |

  12. (A) Half life period of first order reaction is independent of concent...

    Text Solution

    |

  13. A: Rate constant of a reaction at a particular temperature is constant...

    Text Solution

    |

  14. A: Lesser the activation energy, greater is the rate of reaction R: ...

    Text Solution

    |

  15. (A) Molecularity has no meaning for a complex reaction. (R ) The ove...

    Text Solution

    |

  16. (A) If the activation energy of a reaction is zero, temperature has no...

    Text Solution

    |

  17. (A) The overall order of the reaction is the sum of the exponents of a...

    Text Solution

    |

  18. (A) Rate of reaction can also increase with the formation of product, ...

    Text Solution

    |

  19. (A) Order and molecularity are always equal (R ) Complex reactions t...

    Text Solution

    |

  20. (A) The order of a reaction may be nagative. (R ) In some cases, the...

    Text Solution

    |