(D) The given reaction represents the Van Arkel method for the refining of metals like $Ti$ and $Zr$.In this process,the crude metal is heated in an e

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(D) The given reaction represents the Van Arkel method for the refining of metals like $Ti$ and $Zr$.In this process,the crude metal is heated in an evacuated vessel with iodine to form a volatile metal iodide $(TiI_4)$.The metal iodide is then decomposed by heating it over a tungsten filament at a higher temperature $(1700 \ K)$ to obtain the pure metal.This method is specifically used to remove oxygen and nitrogen impurities from metals.

Class 12 Chemistry General Principles and Processes of Isolation of Elements Refining of crude Metal

Easy

Which method of purification is represented by the following equation?
$Ti_{(s)} + 2I_{2(g)}$ $\xrightarrow{523 \ K} TiI_{4(g)}$ $\xrightarrow{1700 \ K} Ti_{(s)} + 2I_{2(g)}$

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A
Zone refining
B
Cupellation
C
Polling
D
Van Arkel

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Class 12 Questions

Class 12

Chemistry Questions

Chapter

General Principles and Processes of Isolation of Elements

Subtopic

Refining of crude Metal

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Outline the principles of refining of metals by the following methods:
$(i)$ Zone refining
$(ii)$ Electrolytic refining
$(iii)$ Vapour phase refining

Medium

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In the electrolytic purification of copper,some gold is found in the:

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During the purification of an impure metal by electrolysis,the impure metal is used as the ...... and the pure metal is used as the ...... .

Easy

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Which method of refining nickel is represented by the following equation?
$Ni$ (impure) $+ 4CO$ $\xrightarrow{320 \ K} Ni(CO)_4$ $\xrightarrow{420 \ K} Ni$ (pure) $+ 4CO$

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The zone refining method is based on which principle?

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Which method of purification is represented by the following equation?$Ti_{(s)} + 2I_{2(g)}$ $\xrightarrow{523 \ K} TiI_{4(g)}$ $\xrightarrow{1700 \ K} Ti_{(s)} + 2I_{2(g)}$

Similar Questions

Outline the principles of refining of metals by the following methods:$(i)$ Zone refining$(ii)$ Electrolytic refining$(iii)$ Vapour phase refining

In the electrolytic purification of copper,some gold is found in the:

During the purification of an impure metal by electrolysis,the impure metal is used as the ...... and the pure metal is used as the ...... .

Which method of refining nickel is represented by the following equation?$Ni$ (impure) $+ 4CO$ $\xrightarrow{320 \ K} Ni(CO)_4$ $\xrightarrow{420 \ K} Ni$ (pure) $+ 4CO$

The zone refining method is based on which principle?

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Which method of purification is represented by the following equation?
$Ti_{(s)} + 2I_{2(g)}$ $\xrightarrow{523 \ K} TiI_{4(g)}$ $\xrightarrow{1700 \ K} Ti_{(s)} + 2I_{2(g)}$

Outline the principles of refining of metals by the following methods:
$(i)$ Zone refining
$(ii)$ Electrolytic refining
$(iii)$ Vapour phase refining

Which method of refining nickel is represented by the following equation?
$Ni$ (impure) $+ 4CO$ $\xrightarrow{320 \ K} Ni(CO)_4$ $\xrightarrow{420 \ K} Ni$ (pure) $+ 4CO$