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What are lyophobic colloids? Give one ex...

What are lyophobic colloids? Give one example.

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ASSAM ACADEMIC CENTRE-EXAM PAPER 2013-Example
  1. Mention any two factors which distinguish physisorption from chemisorp...

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  2. What is observed when a beam of light is passed through a colloidal so...

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  3. What are lyophobic colloids? Give one example.

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  4. Explain the bleaching action of Cl2.

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  5. H2S acts only as reducing agent while SO2 acts as an oxidising as well...

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  6. How will you convert the following? Give chemical equations only. Benz...

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  7. How will you convert the following? Give chemical equations only. Anil...

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  8. Complete the following reaction: CH3CH2CH2OH + SOCl2 rarr?

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  9. An alkylchloride (X) reacts with magnesium metal in presence of dry et...

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  10. Give one chemical test to distinguish between the following pair Penta...

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  11. Justify the following: Sleeping pills are recommended to patient suffe...

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  12. Why do we require artificial sweetening agents?

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  13. What is semiconductor? Mention the two main types of semiconductor.

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  14. Sodium crystallizes in a body-centred cubic (bcc) unit cell. Calculat...

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  15. Mention the type of semiconductor, (n-type or p-type) when silicon dop...

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  16. Gold metal crystallizes in a face-centred cubic cell (fcc). Determine ...

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  17. Describe the role of the following in the processes mentioned: NaCN in...

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  18. Describe the role of the following in the processes mentioned: Limesto...

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  19. Describe the role of the following in the processes mentioned: Iodine ...

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  20. Write down the reaction taking place in different zones in the blast f...

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