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In the extraction of copper, metal is fo...

In the extraction of copper, metal is formed in the Bessemer converter due to which of the following reaction?

A

`Cu_(2)S +2Cu_(2)O rarr 6Cu +SO_(2)`

B

`Cu_(2)S rarr 2Cu +S`

C

`Fe + Cu_(2)O rarr 2Cu +FeO`

D

`2Cu_(2)O rarr 4Cu +O_(2)`

Text Solution

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The correct Answer is:
A
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ALLEN-METALLURGY-EXERCISE-02
  1. Auto-reduction process is used for the extraction of :

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  2. When Alumina is electrolysed in presence of cryolite, the gas liberate...

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  3. In the extraction of copper, metal is formed in the Bessemer converter...

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  4. x,y and z in the following processes are respectively (i) P(2)O(5) +...

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  5. Which of the following processes involves smelting

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  6. Out of the following which ores are calcinated during extraction (a)...

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  7. Which of the following match are incorrect

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  8. Malachite on calcination gives rarr 'A' + CO(2) +H(2)O. Compound 'A'...

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  9. Which of the following ores are calcinared during extraction

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  10. Which process of purification is represented by the following reaction...

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  11. Which are correctly is matched

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  12. Which of the following reactions is not involved in serpeck's process ...

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  13. Impure Ni + 4CO overset(60-80^(@)C)to Ni(CO)(4)overset(180^(@)C)to Ni+...

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  14. Neutral refractory material used in furnaces is :

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  15. Carbon cannot be used in the reduction of Al(2)O(3) because :

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  16. From the following flowsheet for the extraction of pure metal, answer ...

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

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  18. Consider the following steps: Cu(2)S overset("roast in air")rarr A o...

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  19. Main source of lead is galena (PbS). It is converted to Pb by : S...

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  20. Ag(2)S + NaCN rarr (A),(A) + Zn rarr (B) (B) is a metal. Hence, (A) ...

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