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The process of bringing the metal or its...

The process of bringing the metal or its ore into solution by the action of a suitable chemical reagnet following by extraction of the metal either by electrolysis or by suitable precipitating agent is called

A

Electrometallurgy

B

Hydrometallurgy

C

Electro refining

D

Zone refining

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The correct Answer is:
B
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Silver metal is extracted from Ag_(2) S by cyanide process. The one is concentrated through froth floation process. The concentrated ore is the leached and solution is r ed with reducing agents to get spongy silver which then purified by fusion with an oxidant followed by electrolysis. Ag is precipitated from an aqueous solution of sodium argentocynide by adding

AAKASH SERIES-PRINCIPLES OF METALLURGY-PRACTICE EXERCISE
  1. Aqueous sodium cyanide is used as a reagent in the metal extraction. T...

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  2. Metal is precipitated from Au(CN)(4)^(3-) using zinc as a precipitant....

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  3. The best electrolyte for the extraction of magnesium metal is

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  4. Which one of the following is the mineral for tin?

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  5. Some statements about the below Ellingham diagram are given below ...

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  6. Carbon cannot be used in the reduction of Al2 O3 because

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  7. Spinels are denoted with the formula MAl2 O4, where 'M' is

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  8. Magnesium present in the sea water is precipitated using 'X' and preci...

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  9. Magnesium oxide is reduced in the Hansging method using

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  10. The green mass formed when copper is exposed to moist air has the same...

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

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  12. Zr + 2I2 to Zr I4 overset(1800k) to Zr + 2I2 This sequence ...

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  13. Some statements about Ellingham diagram a) Increase in the slope of th...

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  14. The metal that can be obtained even by the electrolysis of its aqueous...

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  15. the most electropositive metals are isolated from their ors by

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  16. In order to refine blister copper it is melted in a furnance and is st...

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  17. Electric furnaces are lined with magnesia because

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  18. The separation of lanthanoids by the ion exchange method is based on

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  19. Metal carbonate is converted to the corresponding metal oxide usually ...

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  20. Blast furnace is used in the extraction of the metal

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