Home
Class 11
CHEMISTRY
Statements : A catalyst doesnot alter th...

Statements : A catalyst doesnot alter the equilibrium constant os a reaction .
Expabnations : A catalyst complex with the reactants and provides an alternate path wirh a lower energy of activation for the reacton . The forwaord and forwad and reverse reactions are affected to the same extent .

A

If both (A) and (R) are true and (R) is the correct explanation of (A).

B

If both (A) and (R) are true but (R) is not the correct explanation of (A).

C

If (A) is correct but (R) is incorrect.

D

If (A) and (R) are both incorrect.

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ADSORPTION AND CATALYSIS

    OP TANDON|Exercise Matrix Matching Type Questions|7 Videos
  • ADSORPTION AND CATALYSIS

    OP TANDON|Exercise LINKED COMPREHENSION TYPE QUESTIONS|10 Videos
  • ADSORPTION AND CATALYSIS

    OP TANDON|Exercise OBJECTIVE QUESTIONS (LEVEL-B)|31 Videos
  • AROMATIC HYDROCARBONS (ARENES)

    OP TANDON|Exercise EXAMPLES|24 Videos

Similar Questions

Explore conceptually related problems

Assertion : A catalyst lowers the threshold energy level for a reaction Reason : A catalyst combines with one of the reactans of from an intermediate the follows an alternate path with lesser energy of activation.

Statements : A catalyst lowers the threshokd energy level for reaction . Explanations : Catalyst combines with reactabnt to form an exothermic intermediate and provide another parthway to traction .

Statements : A catalyst enhances the rate of a reactgion . Expabnations : The energy foactivation of the reaction is lowered in presence of a catarge of the coagualnt ion.

Assertion(A): A catalyst speed up a reaction but does not participate in its mechanism. Reason(R): A catalyst provides an alternative path of lower activation energy to the reactants.

Statement: A catalyst always lower the energy of ectivation. Explanation: The catalyst-reactant interaction forms activated adsorbed complex and adsorption is always exothermic.

Statement-1 : The catalyst does not affect the equilibrium constant. Statement-2 : Because for the catalysed reaction and uncatalysed reaction Delta H remains same and equilibrium constant depends on Delta H .

OP TANDON-ADSORPTION AND CATALYSIS-Assertion -Reason TYPE QUESTIONS
  1. Statements : A catalyst doesnot alter the equilibrium constant os a re...

    Text Solution

    |

  2. Assertion (A): Hydrolyiss of ethyl acetate in the presence of acid is ...

    Text Solution

    |

  3. Assertion(A): In chemisorption, adsorption keeps on increasing with te...

    Text Solution

    |

  4. (A) A reaction cannot become fast by itself unless a catalyst is added...

    Text Solution

    |

  5. Assertion(A): A catalyst speed up a reaction but does not participate ...

    Text Solution

    |

  6. (A) Fruit formation process shows increase in rate with passage of tim...

    Text Solution

    |

  7. Assertion(A): A catalyst speed up a reaction but does not participate ...

    Text Solution

    |

  8. Assertion(A): Catalysts are always transition metals. Reason(R): Tra...

    Text Solution

    |

  9. The mass of nickel catalyst recovered after being used in the hydrogen...

    Text Solution

    |

  10. Assertion(A): All enzymes are proteins, but all proteins are not enzym...

    Text Solution

    |

  11. (A) The reaction of oxalic acid with acidified KMnO(4) is first slow ...

    Text Solution

    |

  12. (A) For adsorption DeltaG, DeltaS, and DeltaH all have negative value....

    Text Solution

    |

  13. Assertion: A gas with higher critical temperature gets adsorbed to mor...

    Text Solution

    |

  14. Assertion(A): Physical adsorption of molecules on the surface requires...

    Text Solution

    |

  15. Assertion(A): Activity of an enzyme is pH dependent. Reason(R): Chan...

    Text Solution

    |

  16. Assertion: Alcohols are dehydrated to hydrocarbons in the presence of ...

    Text Solution

    |

  17. (A) ZSM-5 is used as a catalyst in petrochemical industries. (R) Zeo...

    Text Solution

    |

  18. (A) A catalyst increases the rate of areaction. (R)In presence of a ...

    Text Solution

    |

  19. (A) NO is used as ahomogeneous catalyst for oxidation of CO . 2CO +O...

    Text Solution

    |