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Why is it important to have clean surfac...

Why is it important to have clean surface in surface studies ?

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It facilitates the adsorption of desired species . If surface is covered by the gases of air then it will not be available for adsorption of desired gases. So, it is very important to have clean surface in surface studies i.e. , study of surface chemistry.
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NCERT EXEMPLAR-SURFACE CHEMISTRY-Surface Chemistry
  1. In a reaction, catalyst changes ……… .

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  2. Which of the following phenomenon occurs when a chalk stick is dipped ...

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  3. Why is it important to have clean surface in surface studies ?

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  4. Why is chemisorption referred to as activated adsorption?

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  5. What type of solutions are formed on dissolving different concentratio...

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  6. What happens when gelatin is mixed with gold sol ?

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  7. How does it become possible to cause artificial rain by spraying silve...

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  8. Gelatin which is a peptide is added in ice-creams. What can be its ro...

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  9. What is collodion?

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  10. Why do we add alum to purify water ?

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  11. Which phenomenon occurs when an electric field is applied to a colloid...

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  12. What causes Brownian motion in colloidal dispersion?

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  13. A colloid is formed by adding FeCl(3) in excess of hot water. What wil...

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  14. How do emulsifiers stabilise emulsion ? Name two emulsifiers.

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  15. Why are some medicines more effective in the colloidal form?

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  16. Why does leather get hardened after tanning?

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  17. How does the precipitation of colloidal smoke take place in Cottrell p...

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  18. How will you distiguish between dispersed phase and dispersion medium ...

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  19. On the basis of Hardy-schulze rule explain why the coagulating power o...

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  20. Why does bleeding stop by rubbing moist alum?

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