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The substance which is added to ore in o...

The substance which is added to ore in order to remove impurities during smelting is called

A

Slag

B

Gangue

C

Flux

D

Matrix

Text Solution

Verified by Experts

The correct Answer is:
C
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NARAYNA-METALLURGY-EXERCISE-1 (HOME WORK)(EXTRACTION OF METALS)
  1. Heating pyrites in air to remove sulphur dioxide is known as

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  2. Calcination and roasting are generally carried out in

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  3. Roasting is carried out in case of:

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  4. An ore after levigation is found to have basic impurities. Which of th...

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  5. Which of the following processes involves smelting ?

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  6. The substance which is added to ore in order to remove impurities duri...

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  7. The process of bringing the metal or its ore into solution by the acti...

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  8. The extraction of which of the following metals involves bassemerisati...

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  9. Which of the following statements is correct regrading the slag obtain...

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  10. Which is the strongest reducing agent?

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  11. The process in which the ore is heated in excess of air below its metl...

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  12. Which of the following metals are extracted by electrolytic reduction?

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  13. Cryolite is:

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  14. The least stable oxide at room temperature is

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  15. The oxidation state of Fe in Fe(3)O(8) is

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  16. The iron obtained from the blast furnace is called:

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  17. Which of the following elements contitutes a major impurity in pig iro...

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  18. In the course of a chemical reaction an oxidant -

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  19. Electrolytic reduction of alumina to aluminium by Hall-Heroult process...

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