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What are lyophilic and lyophobic sols ? ...

What are lyophilic and lyophobic sols ? Give one example for each type.

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VGS PUBLICATION-BRILLIANT-MOST IMPORTANT QUESTIONS-SURFACE CHEMISTRY (SHORT ANSWER TYPE QUESTIONS)
  1. What is catalysis ? How is catalysis classified ? Give two examples fo...

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  2. Name any six enzyme catalysed reaction.

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  3. Explain Tyndall effect and Brownian movement.

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  4. What are lyophilic and lyophobic sols ? Give one example for each type...

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  5. Describe Bredig's arc method of preparation of colloids with a neat di...

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  6. Define Gold Number.

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  7. Explain Zone refining.

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  8. How is alumina separated from silica in the bauxite ore associated wit...

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  9. Give examples to differentiate roasting and calcination.

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  10. Explain the purification of sulphide ore by Froth Floatation Method.

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  11. Outline the principles of refining of metals by the following methods....

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  12. Outline the principles of refining of metals by the following methods....

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  13. Outline the principles of refining of metals by the following methods....

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  14. Outline the principles of refining of metals by the following methods....

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  15. Which of the following reagent is used in the extraction of Aluminium ...

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  16. Explain the extraction of Zinc form Zinc blende.

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  17. Write any two ores with formulae of the following metal : Aluminium

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  18. Write any two ores with formulae of the following metal : Zinc

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  19. Write the names and formulae of any two ores of iron

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  20. Write any two ores with formulae of the following metal : Copper

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