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Heating pyrities in air to remove sulphu...

Heating pyrities in air to remove sulphur is called

A

Roasting

B

Calcination

C

Smelting

D

Slagging

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The correct Answer is:
A
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MOTION-METALLURGY-EXERCISE 1
  1. Baeyer’s process is used for the purification of Bauxite containing .....

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  2. An ore of tin containing FeCrO(4) is concentrated by

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  3. Heating pyrities in air to remove sulphur is called

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  4. Purpose of smelting of an one ore is –

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  5. The substance used in the thermite process of reducing metal ores is

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  6. The aim of addition of flux along with the ore during smelting is

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  7. Which one of the following metals is extracted by carbon reduction pro...

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  8. The common method for the extraction of metals from oxide ores involve...

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  9. Specific gravity of slag is

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  10. Heating of carbonates to remove carbon is called as –

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  11. Which one of the following is not a basic flux –

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  12. False statement is –

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

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

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

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

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

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  18. The purest variety of iron is called

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

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

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