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Froth floatation process is used for the...

Froth floatation process is used for the concentration of ……………..ores.

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MODERN PUBLICATION-METALS AND NON-METALS-EXERCISE
  1. The rockey material found with ores is known as…………….

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  2. Conversion of sulphide ore into an oxide by heating in excess of air i...

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  3. Froth floatation process is used for the concentration of ……………..ores.

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  4. Cinnabar is an ore of

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  5. Fill ups Sodium amalgam is a mixture of sodium and …………………. .

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  6. What is the colour hydrated copper sulphate?

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  7. Fill ups The process of covering iron with………….is called galvanization...

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  8. Fill ups Out of Al,Zn and Ag only…………..cannot displace hydrogen form d...

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  9. What are het reactions occuring at the cathode and anode of a Leclanch...

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  10. Is nickel more reactive or less reactive than copper?

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  11. Can we store copper sulphate solution in a zinc vessel ?

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  12. Can you describe what happens when milk is converted into curd or yogh...

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  13. How is water gas prepared ?

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  14. Write the reactions: Chlorination of Benzene

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  15. Write the functions of : Acrosome.

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  16. Aluminium powder was added to a solutoin of copper sulphate. The colou...

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  17. Zinc granules are placed in each of the four solutions A,B,C and D as ...

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  18. Two beakers A and B contain iron sulphate solution. In beaker A, a sma...

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  19. A student puts some crystals of CuSO4 in water taken in a test tube. T...

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  20. Two beakers A and B contain an aqueous solution of FeSO4. In beakers A...

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