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Explain the role of the following in the...

Explain the role of the following in the processes mentioned: Depressant in the forth floatation process.

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ASSAM ACADEMIC CENTRE-EXAM PAPER 2012-Example
  1. Explain the role of the following in the processes mentioned: Silica i...

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  2. Explain the role of the following in the processes mentioned: Cryolite...

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  3. Explain the role of the following in the processes mentioned: Depressa...

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  4. How is 'cast iron' different from pig iron?

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  5. Name the common elements present in the anode mud in electrolyte refin...

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  6. Name one metal which is refined by Van Arkel method?

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  7. Write the chemical equations for the following processes: Chlorine is ...

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  8. Write the chemical equations for the following processes: orthophospho...

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  9. Mention two uses of H2SO4.

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  10. Compare the chemistry of Actinoids with that of the Lanthanoids with s...

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  11. Compare the chemistry of Actinoids with that of the Lanthanoids with s...

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  12. Compare the chemistry of Actinoids with that of the Lanthanoids with s...

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  13. Zn^(2+) salts are colourless while Cu^(2+) salts are coloured. Give re...

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  14. Complete the following reaction equation: Cr2O7^(2-) + Sn^2 + H^+ rarr

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  15. Complete the following reaction equation: MnO4^(-) + Fe^(2+) + H^+ rar...

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  16. Write one general method for the preparation of the following class of...

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  17. Complete and name the following reactions: RNH2 + CHCl3 + KOH(alc) rar...

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  18. Complete and name the following reactions: RCONH2 + Br2 + NaOH rarr

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  19. Give reasons why the aromatic amines are weaker bases than aliphatic a...

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  20. What do you mean by Zwitter ion?

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