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During electrorefining of a metal, impur...

During electrorefining of a metal, impure metal is made anode.

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In the electroefining of metals, impure metal is

Assertion : In electrolytic refining of metal, impure metal is made cathode while a strip of pure metal is used as anode. Reason : The pure metal gets deposited at anode as anode mud.

In the electrolytic refining of a metal, the impure metal is made the ______

Mark the correct statements. (i) Mercury can be refined by the process of distillation. (ii) In poling, the molten impure metal is stirred with green poles of wood. (iii) In electrolytic refining of metals , impure metal is made as cathode and a thin strip of pure metal is made as anode.

In electrorefining, the impure metal is made _____.

CENGAGE CHEMISTRY-GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS-Exercise (True/False)
  1. Levigation is generally employed for concentration of sulphide ores.

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  2. Every mineral is an ore, but every ore is not a mineral.

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  3. Slag is a product formed during smelting by combination of flux and im...

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  4. Alkali metals can be obtained by chemical reduction of their compounds...

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  5. Sylvine is an ore of potassium.

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  6. Oxide ore are purified by levigation process.

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  7. During electrorefining of a metal, impure metal is made anode.

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  8. Highly pure metal can be obtained by zone refining

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  9. Aluminium is the most abundant metal in the earth's crust.

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  10. Reactive metals occur in native state.

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  11. The process of calcination and roasting is carried out in reverberator...

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  12. In calcination, ore is heated strongly in the absence of air

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  13. Copper is found both in free as well as in combined state in nature.

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  14. Below 1623 K, Al can reduce MgO to Mg, but above 1623 K, reverse is tr...

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  15. Mond's process is used for purification of titanium.

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  16. KCN forms soluble complex with silver galance.

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  17. Zinc blende on roasting often gives Zn metal.

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  18. Silver is extracted by hydrometallurgy.

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  19. The lining of blast furnace is made up of fire clay bricks.

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  20. Gypsum is an ore of magnesium.

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