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Copper is extracted from copper pyrites ...

Copper is extracted from copper pyrites by roasting the ore partially and followed by ..........

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MODERN PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-EXERCISE
  1. What is that special property of monel metal because of which it is us...

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  2. Give examples of steel alloys

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  3. Copper is extracted from copper pyrites by roasting the ore partially ...

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  4. Write chemical reactions taking place in the extraction of zinc from z...

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  5. List important uses of copper .

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  6. Write down the reactions taking place in different zones in the blast ...

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  7. Outline the principles involved in the following methods of refining o...

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  8. Why is the extraction of copper from pyrites more difficult than that ...

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  9. “Metals are usually not found as nitrates in their ores”. Out of the f...

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  10. Match items of Column I with the items of Column II and assign the cor...

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  11. Which alloy is used to make arms and equipments of machines?

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  12. Which of the following is used in paints?

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  13. 2X+B2H6 rarr [BH2(X)2]^+ [BH4]^- The amine(s) X is/are

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  14. Which of the following reaction is an example of calcination process?

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  15. Fill in the blanks- Methane gas is also known as

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  16. Principle of paper chromatography is based on

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  17. Magnetic separation method is basically used for-

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  18. Give two uses of methane gas?

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  19. is a mixture of solution of copper sulphate and lime which is used as ...

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  20. Heating mixture of Cu2O and Cu2S will give :

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