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Heating pyrites to remove sulphur is cal...

Heating pyrites to remove sulphur is called

A

Roasting

B

Calcination

C

Smelting

D

Froth-floatation

Text Solution

Verified by Experts

The correct Answer is:
A
`MS^(-2) + O_(2) overset(Delta)rarr MO^(-2) +SO_(2)`
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ALLEN-METALLURGY-EXERCISE-01
  1. Calomel is the name of

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  2. Hydrometallurgy method is used for the extraction of which of the foll...

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  3. Heating pyrites to remove sulphur is called

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  4. Write the reaction in which "Philosopher's wool" is formed ?

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  5. Which of the following metals are extracted by using Al as reducing ag...

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  6. The correct ste of carbonate ores is (a) Magnesite (b) Siderite (c) ...

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  7. Calcination is the process of heating the ore strongly in the of air.

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  8. Copper matte consists of:-

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  9. Which of the following statements is correct for roasting

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  10. Among the following statements, the incorrect one is

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  11. Fe can displace which of the following ions from their aqueous solutio...

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  12. There are following extraction process of silver but not :

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  13. Which of the following is not an ore:

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  14. In the Pidgeon process, Mg is produced by:

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  15. Fool's gold is

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

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  17. Identify the process to which the following reaction belongs Al(2) O...

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  18. (Ag +Pb) alloy overset("Melt and add zinc")rarr (Ag +Pb +Zn) "melt" ov...

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  19. Formation of metallic copper from sulphide ore in te normal thermometa...

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  20. Bessemerisation is carried out for (i) Fe (ii) Cu (iii) AI (iv) sil...

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