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Which of the following process is used i...

Which of the following process is used in the extractive metallurgy of magnesium ?

A

Fused salt electrolysis

B

Self reduction

C

Aqueous solution electrolysis

D

Thermite reduction

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The correct Answer is:
A
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AAKASH SERIES-PRINCIPLES OF METALLURGY-OBJECTIVE EXERCISE-1
  1. Name the metal M, which is extracted based on the following equation ...

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  2. Of the following metals that cannot be obtained by electolysis of the ...

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  3. Which of the following process is used in the extractive metallurgy of...

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  4. In the Bayer's process of purification of red hauxite the leaching age...

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  5. Chemical leaching is useful in the concen-tration of

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  6. The electrolytic reduction method for the preparation of aluminium is ...

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  7. During the electrolytic reduction of alumina, the reaction at cathode ...

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  8. Coinage alloy contains copper. The other metal present may be

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  9. Alloy used in making anchors, bolts, chains and wires

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  10. (A) : Cassiterite mineral is concentrated by electromagnetic method ...

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  11. (A) Efficiency of the reverboratary furnace is less (R) The waste...

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  12. (A): In the smelting of copper pyrites in blast furace, Cu(2)S formed ...

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  13. (A): Iron pyrate is used in the extraction of iron releases pollutants...

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  14. (A) Reduction of a metal oxide is easier if the metal formed is in liq...

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  15. (A): Leaching is chemical method used to ore benefication process (R...

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  16. (A): Hydrated oxides are usually subjected to roasting (R) : Hydrate...

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

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  18. (A): High purity gallium for semiconducting purpose can be obtained by...

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  19. (A): Copper metal can be extracted by electrolysis even from aqueous s...

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  20. (A): Last traces of lead from silver is removed by cupellation (R): ...

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