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Given below are the steps for extraction...

 Given below are the steps for extraction of copper from its ore. Write the reaction involved. 
(i) Roasting of copper (I) sulphide.
(ii) Reduction of copper (I) oxide with copper (I) sulphide.
(iii) Electrolytic refining
(b) Draw a neat and well labelled diagram for electrolytic refining of copper.

A

Electrolytic reduction

B

Roasting followed by reduction with coke

C

Roasting , smelting followed by self reduction

D

Roasting , smelting followed by reduction by another metal

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AAKASH INSTITUTE ENGLISH-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Objective type Questions (One option is correct)
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  2. The extraction of zinc from zinc blende is achieved by :

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  3. Given below are the steps for extraction of copper from its ore. Write...

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  4. Which of the following metals is purified by distillation process ?

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  5. Vapour phase refining can be carried out in case of

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  6. Zone refining is based on the principle that .

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  7. Which of the following is not a method of purification of metals ?

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  8. Assertion: Zone refining method is used to produce pure metals which a...

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  9. Which of the following is not a use of aluminimum ?

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  10. Which of the following is not a use of zinc ?

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  11. Wrought iron is used for making

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  12. Which of the followed metals can be extracted by using carbon reductio...

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  13. Purest form of iron is

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  14. The metal oxide which cannot be reduced to metal by carbon is

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  15. On heating a mixture of Cu(2)O and Cu(2)S, we get

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  16. Which of the following pairs of metals is purified by van-Arkel method...

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  17. State briefly the principles which serve as basis for the following op...

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  18. In zone refining methods, the molten zone

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  19. Ag(2)S+NaCNto(A), (A)+Znto(B)+Ag (A) and (B) are respectively

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  20. Poling process is used

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