A catalyst

A

increases the average kinetic energy of reacting molecules

B

increases 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:
C
Promotional Banner

Topper's Solved these Questions

  • SURFACE CHEMISTRY

    AAKASH SERIES|Exercise LEVEL - I (EXERCISE - II)(ADSORPTION)|7 Videos

  • SURFACE CHEMISTRY

    AAKASH SERIES|Exercise LEVEL - I (EXERCISE - II)(COLLOIDS)|15 Videos

  • SURFACE CHEMISTRY

    AAKASH SERIES|Exercise LEVEL - I (EXERCISE - I)(COLLOIDS)|36 Videos

  • STOICHIOMETRY

    AAKASH SERIES|Exercise PRACTICE SHEET (ADVANCED) (INTEGER TYPE QUESTION)|2 Videos

  • VA GROUP ELEMENTS

    AAKASH SERIES|Exercise PRACTICE EXERCISE|51 Videos

Similar Questions

Explore conceptually related problems

The following are some statements about characteristics of catalyst I) A catalyst generally function under the optimum conditions like pH, temperature II) A catalyst has a selective action III) Small amount of the catalyst is sufficient The correct combination is

Enzymes are biological catalysts that differ from non - biolgical catalysts basically in

Lindlar's catalyst is

A biological catalyst is

A biological catalyst is

The catalyst in Wacker's process is

Discuss the mechanism of heterogeneous catalysts.

The catalyst used for the polymerisation of olefins is

AAKASH SERIES-SURFACE CHEMISTRY-LEVEL - I (EXERCISE - I)(CATALYSIS)
  1. A catalyst

    Text Solution

    |

  2. The rate of a chemical reaction is increased in presence of a catalyst...

    Text Solution

    |

  3. An inhibitor is essentially

    Text Solution

    |

  4. Which of the following kind of catalysis can be explained by the adsor...

    Text Solution

    |

  5. Which of the following processes does not involve a catalyst

    Text Solution

    |

  6. The catalyst used in the dehydration of ethylalcohol to ethene is

    Text Solution

    |

  7. In heterogeneous catalytic reactions, catalyst in the finely divided f...

    Text Solution

    |

  8. When an acid solution of oxalic acid at 80^(@)C is titrated with KMnO(...

    Text Solution

    |

  9. In heterogeneous catalytic reactions involving solid catalyst and gase...

    Text Solution

    |

  10. The process which is catalysed by one of the products is called

    Text Solution

    |

  11. Which of the following reactions is an example of heterogeneous cataly...

    Text Solution

    |

  12. The catalyst used to increase the dissociation of H2O2 is

    Text Solution

    |

  13. A catalyst increases the rate of a reaction with out changing

    Text Solution

    |

  14. Catalytic action of an enzyme is

    Text Solution

    |

  15. Which of the following catalyst is used for preparing toluene by react...

    Text Solution

    |

  16. In which of these processes platinum is used as a catalyst ?

    Text Solution

    |

  17. A biological catalyst is

    Text Solution

    |

  18. Which of the following is an example of a heterogeneous catalytic reac...

    Text Solution

    |

  19. Which of the following is correct

    Text Solution

    |

  20. {:("LIST - 1","LIST - 2"),("A) Positive catalyst","1) "H(2)S" to iron ...

    Text Solution

    |