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Ferric hydroxide sol can be prepared fro...

Ferric hydroxide sol can be prepared from freshly perpared ferric hydroxide precipitate. It can also be prepared by adding ferric chloride solution to boilling water. In both cases the sol particles are positively charged. Name the above two methods of preparation of ferric hydroxide sol.

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The correct Answer is:
Peptization and hydrolysis respectively.
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A N EXCEL PUBLICATION-SURFACE CHEMISTRY-QUESTION BANK
  1. In certain cases, physisorption tansfers into chemisorption as tempera...

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  2. Explain how colloids get coagulated on addition of salts.

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  3. Ferric hydroxide sol can be prepared from freshly perpared ferric hydr...

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  4. What happens when an electric is applied across two platimum electrode...

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  5. Colloids have many characterstic properites. Among these Tyndall effec...

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  6. State Hardy-Schulze rule which deals with the coagulation of colloids ...

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  7. What is a protective colloid?

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  8. Colloids are widely used in industry and in daily life. What are collo...

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  9. Colloids are widely used in industry and in daily life. Write any four...

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  10. The accumulation of molecualr species at the surface rather than in th...

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  11. The accumulation of molecualr species at the surface rather than in th...

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  12. Enzymes are known as biochemical catalysis. Write the two important ch...

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  13. There are mainly two types of adsorption of gases on solids. What are ...

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  14. Write any two characteristics of each of the above two types of adsorp...

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  15. Sols are colloidal systems in which dispersion medium is liquid and di...

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  16. Peptisation is a method of preparation of sol. Write a general procedu...

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  17. Adsorption has many applications. Write any two applications of adsorp...

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  18. Physisorption and chemisorption are the two types of adsorption. Write...

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  19. Which of the following is Lyophobic colloid? Starch in water, Gum in w...

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  20. Colloids are widely used in industry and in daily life. Write any four...

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