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(A): In the smelting of copper pyrites i...

(A): In the smelting of copper pyrites in blast furnace, `Cu_2 S` formed but not FeS.
(R) : Cu has greater affinity to 'S' than to 'O' where as Fe has greater affinity to 'O' than to 'S'.

A

Both A & R are true, R is the correct explanation of A

B

Both A & R are true, R is not correct explanation of A

C

A is true, R is false

D

A is false, R is true

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-PRINCIPLES OF METALLURGY-OBJECTIVE EXERCISE-1
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  3. (A): In the smelting of copper pyrites in blast furnace, Cu2 S formed ...

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  8. (A): Levigation is used for the separation of oxide ores from impuriti...

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  12. (A): Zinc can be refined from lead by distillation (R): Vapour press...

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  13. (A): Metals like Sn and Pb can be refined by liquation (R) : Sn and ...

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  15. (A): Corrosion involves the oxidation of metal (R): Oxidised form of...

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  18. (A) : Sulphide ores are concentrated by froth floatation process. (R...

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  19. (A): Platinum and gold occur in native state in nature. (R): Platinu...

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