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What happens when BaCl2 is added to Fe(O...

What happens when `BaCl_2` is added to `Fe(OH)_3` sol?

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The correct Answer is:
`Fe(OH)_3` sol is positively charged. On adding `BaCl_2` the chloride (Cl) ions neutralise the positive charge of `Fe(OH)_3` sol and precipitation takes place.
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A N EXCEL PUBLICATION-SURFACE CHEMISTRY-QUESTION BANK
  1. In an attempt to prepare ferric hydroxide sol by adding small amount o...

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  2. Name the phenomenon behind this.

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  3. What happens when BaCl2 is added to Fe(OH)3 sol?

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  4. Physisorption and chemisorption are two types of adsorption. What is t...

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  5. In certain cases, physisorption tansfers into chemisorption as tempera...

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

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

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

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

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

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  11. What is a protective colloid?

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

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

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

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

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

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

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

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

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

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