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When a sulphide ore is roasted, the prod...

When a sulphide ore is roasted, the product obtained is usually –

A

A metal

B

A sulphite

C

An oxide

D

A nitride

Text Solution

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The correct Answer is:
C
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MOTION-METALLURGY-EXERCISE 1
  1. Which one of the following reactions is an example for calcination pro...

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  2. Match List-I (Metal) with List-II (Process of Extraction) and select t...

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  3. When a sulphide ore is roasted, the product obtained is usually –

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  4. Which of the following curves assures that the metal obtained by carbo...

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  5. Which of the following activities is not related to poling ?

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  6. The purest variety of iron is called

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  7. The Elingham diagram (Fig.) represents the formation of oxides of seve...

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  8. The Elingham diagram (Fig.) represents the formation of oxides of seve...

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  9. The slag obtained during the extraction of copper from coper pyrites i...

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  10. A reaction showing slag formation is .

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  11. In the metallurgy of iron, when limestone is added to the blast furnac...

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  12. A flux is often added to remove impurities from a concentrated ore. ...

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  13. Tin and lead can be refined by

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  14. Refining of silver is done by :

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  15. CO on passing over heated nickel gives

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  16. (xiii) Which process represents the change, Ti + 2I(2) rarr TiI(4) r...

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  17. Purification of Silicon element used in semiconductors is done by .

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  18. Mond's process is used for

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  19. In the Hoope’s process for refining of aluminium, the fused materials ...

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  20. The oxidation numbers of Fe and S in iron pyrites are

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