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Pb and Sn are extracted from their chief...

Pb and Sn are extracted from their chief ore respectively by

A

Carbon reduction, self-reduction

B

Self-reduction, carbon reduction

C

Electrolytic reduction, cyanide process

D

Cyanide process, electrolytic reduction

Text Solution

Verified by Experts

The correct Answer is:
B
`PbS + 2PbO rarr 3Pb + SO_(2)` (self-reduction)
`SnO + C rarr Sn + CO` (Carbon reduction).
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CENGAGE CHEMISTRY ENGLISH-GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS-Exercise (Single Correcttype)
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  2. When MnO2 is fused with KOH and O2, what is the product formed and its...

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  3. Pb and Sn are extracted from their chief ore respectively by

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  4. The substance not likely to contain CaCO(3) is : (2003)

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  5. Extraction of Ag from commercial lead is possible by

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  6. The chemical composition of slag formed during the smelting process in...

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  7. The metal that cannot obtained by electrolysis of an aqueous solution ...

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  8. Ferric oxide blast furnace is reduced by

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  9. Electric furnaces are lined with magnesia because

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  10. Furances are lined with calcium oxide as

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  11. The economical and high melting point compound used in furance lining ...

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  12. In the reverberatory furance

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  13. When limestone is heated strongly, it gives off CO(2). In matallurgy t...

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  14. Pig iron is converted into steel by decreasing the amount of carbon pr...

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  15. Rutile is an ore of

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  16. Which form of iron is extracted from blast furnance :

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  17. Which does not contain aluminium ?

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  18. Which is not a silver ore ?

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  19. Sandstone in some iron ores is removed by

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  20. Coating of zinc on iron objects is commonly known as .

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