Home
Class 12
CHEMISTRY
Which one of the following statements re...

Which one of the following statements regarding catalysis is true ?

A

A catalyst alters the position of equilibrium.

B

A catalyst speeds up the reaction by providing an altrnative path of lower activation energy

C

A catalyst speeds up the reaction by decreasing the frequency factor

D

A catalyst speed up the reaction by providing an altranative path of higher activation energy

Text Solution

Verified by Experts

The correct Answer is:
B

Catalyst does not change the equilibrium constant of a reverible reaction, rather it helps in attaining th equilibrium faster because it catalyes the forward as well as the backward reactions to the same exent so that the equilibrium state remains the same but is attaned earlier.
A Small amount of hte catayst is needd because a catalst does not take part in the overall reaction, but all of it is reformed in later steps. Thus, a catalyst does not appear in the balanced equation for the reaction.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • CHEMICAL KINETICS

    R SHARMA|Exercise Question Bank (Building the knowledge)|53 Videos
  • CHEMICAL KINETICS

    R SHARMA|Exercise Archives|39 Videos
  • CHEMICAL KINETICS

    R SHARMA|Exercise Follow-up 5|12 Videos
  • BIOMOLECULES

    R SHARMA|Exercise Archives|47 Videos
  • CHEMISTRY IN EVERYDAY LIFE

    R SHARMA|Exercise Archives|11 Videos

Similar Questions

Explore conceptually related problems

Which one of the following statement regarding BOD is true?

Which of the following statements regarding fats is true

Knowledge Check

  • Which one of the following statements regarding catalysis in not true ?

    A
    A small amount of the catalyst can catalyse a large amount of reactants.
    B
    A catalyst does not alter Gibbs energy, `Delta_(r)G^(@)` of a reaction
    C
    It catalyses the spontaneous but does not catalyse non-spontaneous reactions.
    D
    A catalyst changes the equilibrium constant of a reversible reaction.
  • Which of the following statement regarding catalyst is not true:-

    A
    A catalyst remains unchanged in composition and quantity at the end of the reaction
    B
    A catalyst can initiate a reaction
    C
    A catalyst does not alter the equilibrium in a reversible reaction
    D
    Catalyst are sometimes very specific in respect of reaction
  • Which of the following statement regarding catalyst is not true?

    A
    A catalyst remains unchanged in compoistion and quantity at the end of the reaction.
    B
    A catalyst can initiate a reaction.
    C
    A catalyst does not alter the equilibrium in a reverisble reaction.
    D
    Catalysts are sometimes very specific in respect of reaction.
  • Similar Questions

    Explore conceptually related problems

    Which of the following statement regarding metals is true?

    Which one of the following statement regarding BOD is true?

    Which one of the following statements regarding EI Nino is NOT true ?

    Which of the following statements regarding acetanilide is not true ?

    Which of the following statements regarding halogens is not true ?