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What is a heterogeneous catalysis? Give ...

What is a heterogeneous catalysis? Give example.

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CHHAYA PUBLICATION-SURFACE CHEMISTRY-Exercise
  1. Why is heat of chemisorption greater than that of physisorption?

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  2. What is a homogeneous catalysis? Give example.

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  3. What is a heterogeneous catalysis? Give example.

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  4. What do you mean by enzyme catalysis? Give an example.

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  5. You are given a sample of a true solution and a colloidal solution hav...

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  6. What happens when gelatin is added to a silver sol?

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  7. What type of sol is obtained when H(2)S gas is passed over an aqueous ...

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  8. An oil-soluble dye is added to an emulsion. As a result, a coloured li...

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  9. If electrical conductivity of an emulsion increases with the addition ...

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  10. When a few drops of dil. HCl is added to a freshly prepared Fe(OH)(3) ...

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  11. Which is a hydrophobic sol-gum, gelatin, sulphur?

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  12. The surface tension of a sol is equal to that of the dispersion medium...

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  13. Which of the following will be needed in least amount for the coagulat...

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  14. Which one is a cationic surface-active agent? (i) dodecyl trimethyla...

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  15. Mention the experiment that shows that colloidal particles are electri...

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  16. In what respect does a hydrosol resemble a solid aerosol ?

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  17. What kind of colloid is obtained in case of soap-like substance ?

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  18. What happens when a lyophobic colloid electrophoresis for a prolonged ...

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  19. What are quantum dot and nano-tube?

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  20. Heat of chemisorption is than heat of physisorption.

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