Home
Class 12
CHEMISTRY
A catalyst :...

A catalyst :

A

Increases the average kinetic energy of reacting molecules

B

decreases the activation energy

C

alters the reaction mechanism

D

Increases the frequency of collisions of reacting species

Text Solution

Verified by Experts

The correct Answer is:
B, C
A catalyst decreases the activation energy by altering the mechanism.
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    VMC MODULES ENGLISH|Exercise JEE Main (Archive)|56 Videos

  • CHEMICAL EQUILIBRIUM

    VMC MODULES ENGLISH|Exercise IN-CHAPTER EXERCISE - G|10 Videos

  • CHEMICAL THERMODYNAMICS

    VMC MODULES ENGLISH|Exercise IN - CHAPTER EXERCISE - L|10 Videos

Similar Questions

Explore conceptually related problems

Write down the name of catalyst for the following: Adams catalyst in reduction.

A negative catalyst will :

Wilkinson catalyst is :

Wilkinson's catalyst is

Inorganic catalysts are

Define catalyst .

Which of the following statements are correct about solid catalyst? (a)Same reactants may give different products by using different catalysts (b)Catalyst does not change DeltaH of reaction (c)Catalyst is required in large quantities to catalyse reactions (d)Catalytic activity of a solid catalyst does not depend upon the strength of chemisorption

the catalyst used in Wacker process is

VMC MODULES ENGLISH-CHEMICAL KINETICS -JEE Advanced (Archive)
  1. The specific rate constant of a first order reaction depends on the

    Text Solution

    |

  2. A catalyst is a substance which :

    Text Solution

    |

  3. A catalyst :

    Text Solution

    |

  4. While studying the decompoistion of gaseous N(2)O(5), it is observed t...

    Text Solution

    |

  5. The rate of chemical change is directly proportional to …………… .

    Text Solution

    |

  6. For a first order reaction, the rate of the reaction doubled as the co...

    Text Solution

    |

  7. The hydroliss of ethyl acetate in………… medium is a…………..order reaction.

    Text Solution

    |

  8. A first order gas reaction has k = 1.5 xx 10^(-6) s^(-1) at 200^(@)C. ...

    Text Solution

    |

  9. A first order reaction is 50% complete in 30 minutes at 27^(@)C and in...

    Text Solution

    |

  10. In a Arrhenius equation for a certain reaction, the values of A and E(...

    Text Solution

    |

  11. The decompoistion of N(2)O(5) according to the equation 2N(2)O(5)(g) r...

    Text Solution

    |

  12. Two reaction, (I)A rarr Products and (II) B rarr Products, follow firs...

    Text Solution

    |

  13. A first order reaction A rarr B requires activation energy of 70 kJ mo...

    Text Solution

    |

  14. The gas phase decomposition of dimethyl ether follows first order kine...

    Text Solution

    |

  15. The progress of the reaction, A ⇌ nB with time, is presented in figure...

    Text Solution

    |

  16. For the reaction N(2)(g)+3H(2)(g) rarr 2NH(3)(g), under certain condit...

    Text Solution

    |

  17. From the following data for the reaction between A and B Calculat...

    Text Solution

    |

  18. At 380^(@)C , the half-life periof for the first order decompoistion o...

    Text Solution

    |

  19. In the Arrhenius equation, k = A exp^(-Ea//RT), A may be termed as the...

    Text Solution

    |

  20. The rate constant for the first order decomposition of H(2)O(2) is giv...

    Text Solution

    |