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Which of the following statements is/are...

Which of the following statements is/are correct?

A

The efficiency of a heterogeneous catalyst depends upon its surface area.

B

Catalyst operates by providing alternate path for the reaction that involves a lower activation energy.

C

Catalyst lowers the energy of activation of the forward direction without affecting the energy of activation of the backward direction.

D

Catalyst does not affect the overall enthalpy change of the reaction.

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The correct Answer is:
A, B, D
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GRB PUBLICATION-SURFACE CHEMISTRY-MULTIPLE OBJECTIVE TYPE
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  2. Which of the following are correctly matched?

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  3. Which is not correct for physical adsorption ?

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  4. Which of the following statements regarding adsorption is/are correct?

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  5. Which of the following is not a characteristic of chemisorption?

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  6. The diameter of colloidal particle is of the order

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  7. Which of the following colloidal solutions contain negatively charged ...

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  8. Which of the following are examples of aerosols?

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  9. Which of the following statements are true for physisoption?

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  10. Which of the following are hydrophobic sols?

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  11. If Cl(2) gas is enclosed in presence of powdered charcoal in a closed...

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  12. When negatively charged colloids like As(2)S(3) sol is added to positi...

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  13. Which of the following are incorrect statements?

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  14. Which of the following are multimolecular colloids?

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  15. The origin of charge on colloidal solution is :

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  16. Which of the following are based on Tyndall effect?

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  17. The correct statement(s) pertaining to the adsorption of a gas on a so...

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  18. The size of colloidal particles is :

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  19. Which of the following statements is/are correct?

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  20. Choose the correct statement(s).

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