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Distillation and Liquation

Which of the ...

Question

Which of the following statements is not correct?

A

Zinc can be extracted from its ore by roasting followed by extraction with coke.

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B

In reverberatory furnace, both oxidation and reduction processes can be carried out.

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C

Silver is purified by distillation or liquation process.

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D

Highly pure metals are obtained by zone refining.

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Solution

The correct option is C Silver is purified by distillation or liquation process.
Silver has moderate boiling and melting points. So, it cannot be refined by distillation or liquation.

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Similar questions

Q. STATEMENT-1: Extraction of zinc from sphalerite ore involves the roasting followed by reduction with coke.
STATEMENT-2 : Zinc can be commercially extracted by hydrometallurgy.

Q. Give the correct order of initials T or F for following statements. Use T if statement is
true and F if it is false.
(i) Every mineral is an ore but every ore is not a mineral.
(ii) Slag is a product formed during extraction of metal by combination of flux and impurities.
(iii) Highly pure metals can be obtained by zone refining.
(iv) Carnallite is an ore of magnesium and sodium.

Q. Which of the following metals can not be extracted by carbon reduction process?

Highly pure metal can be obtained by zone refining.

Q. Give the correct order of initials

T

F

for the following statements. Use

T

if statement is true and

F

if it is false.
(I) Every mineral is an ore but every ore is not a mineral.
(II) Slag is product formed during extraction of metal by combination of flux and impurities.
(III) Highly pure metals can be obtained by zone refining.
(IV) Carnallite is an ore of magnesium and sodium.

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