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Why activated charcoal is a better adsor...

Why activated charcoal is a better adsorbent than ordinary charcoal ?

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### Step-by-Step Solution: 1. **Definition of Activated Charcoal and Ordinary Charcoal**: - Activated charcoal is a form of carbon that has been processed to create a vast number of tiny, low-volume pores, which increases its surface area. - Ordinary charcoal, on the other hand, is simply carbonized organic material without the additional processing to enhance its porosity. **Hint**: Understand the basic definitions of both types of charcoal to differentiate them. ...
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ICSE-SURFACE CHEMISTRY -EXERCISE (PART-II ( DESCRIPTIVE QUESTIONS )) (VERY SHORT ANSWER QUESTIONS)
  1. Why heat of chemisorption is more than heat of physisorption?

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  2. What is meant by positive and negative adsorptions?

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  3. Why activated charcoal is a better adsorbent than ordinary charcoal ?

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  4. How will you prove the selective nature of adsorption ?

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  5. How is adsorption of a gas related to its critical temperature?

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  6. Out of the following gases which will be adsorbed more readily on the ...

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  7. Why is ferric chloride preferred over potassium chloride in case of a ...

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  8. What happens when a colloidal sol of Fe(OH)3 is mixed with that of As2...

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  9. What happens when persistent dialysis of a colloidal solution is carri...

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  10. What happens when a beam of light is passed through As2S3 sol?

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  11. KCl is added to Fe(OH)3 sol?

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  12. What is the main cause of charge on a colloidal solution?

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  13. How are gold number and protective power of colloid related?

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  14. What is demulsification ?

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  15. Give four uses of emulsions.

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  16. What are micelles ? Give an example of a micellers system.

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  17. How does soap help in washing clothes?

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  18. What modification can you suggest in the Hardy-Schulze law?

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  19. Why is it essential to wash the precipitate with water before estimati...

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  20. Why lyophilic colloidal sols are more stable than lyophobic colloidal ...

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