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Which of the following is a correct stat...

Which of the following is a correct statement ?

A

Calamine is the ore of zinc

B

Pyrolusite is the ore of manganese

C

Cassiterite is the ore of tin

D

Calcite is the ore of calcium

Text Solution

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The correct Answer is:
A, B, C, D
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VK JAISWAL-METALLURGY-One OR MORE ANSWERS IS/ ARE CORRECT
  1. Which of the following ores is / are oxide ore (s) ?

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  2. Roasting of copper pyrites is done :

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  3. Which of the following is a correct statement ?

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  4. In which of the following pairs, both the minerals are oxides ?

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  5. Which of the following mineral does not contain sodium ?

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  6. Which of the following pair consists of ore of the same metal ?

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  7. The process by which ligher earthly particles are made free from heavi...

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  8. Roasting is carried out to :

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  9. The chemical treatment of the ore for concentration is done in the cas...

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  10. Froth floatation :

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  11. Which of the following reactions occurs during calcination ?

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  12. Amphoteric nature of aluminium is employed in which of the following p...

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  13. Which of the following is true for calcination of a metal ore ?

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  14. The difference (s) between roasting and calcination is / are :

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  15. The etraction of metals from oxide ores involves

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  16. Metals which can be extracted by smelting process are :

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  17. Of the following reduction processes, correct processes are :

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  18. During the production of iron and steel.

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  19. The smelting of iron in a blast furnace involves, which of the followi...

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  20. Which one of the following metals can be extracted by aluminothermic p...

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