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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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R G PUBLICATION-H.S. Question papers of AHSEC,2019-Exercise
  1. Give reason why a finely divided substance is more effective as an ads...

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  2. What is an adsorption isotherm? In reference to Freundlich adsorption ...

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

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

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  5. Why the noble gases have very low boiling points?

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  6. Copper does not dissolve in HCI while it does dissolve in HNO3

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  7. Explain the following with an example : Kolbe's reaction.

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  8. Explain the following with an example : Reimer-Tiemann reaction.

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  9. What happens when- Cyclohexanecarbaldehyde reacts with PhMgBr and then...

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  10. What happens when- Carbonyl compound is treated with zinc amalgam and ...

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  11. Write the major and minor product of 'Bromination of anisole in ethano...

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  12. Identify the product of the following reactions : C2H5-CO-CH3 overset...

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  13. Identify the product of the following reactions :

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  14. Give one chemical test to distinguish between the following pairs of c...

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  15. Give one chemical test to distinguish between the following pairs of c...

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  16. Explain the following: Ethylamine is soluble in water where as aniline...

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  17. Account for the following: Methylamine in water reacts with ferric chl...

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  18. Answer the following questions : In which classes, the polymers are cl...

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

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  20. What are tranquilizers?

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