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Which one of the following reactions is ...

Which one of the following reactions is an example for calcination process

A

`2Ag + 2HCl + (O) to 2AgCl+ H_2O`

B

`2Zn +O_2 to 2ZnO`

C

`2ZnS + 3O_2 to 2ZnO + 2SO_2`

D

`MgCO_3 to MgO + CO_2`

Text Solution

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The correct Answer is:
D
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MOTION-METALLURGY-EXERCISE 1
  1. Which one of the following is not a basic flux –

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  2. False statement is –

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  3. Which one of the following reactions is an example for calcination pro...

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

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

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

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

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  8. The purest variety of iron is called

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

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

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

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  12. A reaction showing slag formation is .

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

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

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  15. Tin and lead can be refined by

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  16. Refining of silver is done by :

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  17. CO on passing over heated nickel gives

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

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

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  20. Mond's process is used for

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