(D) The given scheme represents the $Van-Arkel$ process.This process is used for obtaining ultrapure metals.In this method,the impure metal is convert

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(D) The given scheme represents the $Van-Arkel$ process.This process is used for obtaining ultrapure metals.In this method,the impure metal is converted into a volatile compound (usually an iodide),which leaves the impurities behind.The volatile compound is then decomposed at a higher temperature to obtain the pure metal.This method is specifically used for the purification of metals like $Ti$ and $Zr$.

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

Easy

Which process of purification is represented by the following scheme?
$\text{Ti}_{\text{impure}} + 2I_2$ $\xrightarrow{250^{\circ}C} TiI_4$ $\xrightarrow{1400^{\circ}C} \text{Ti}_{\text{pure}} + 2I_2$

A
Cupellation
B
Poling
C
Electrolytic refining
D
Van-Arkel process

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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

Which of the following is the correct match?

Difficult

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Which of the following methods is $NOT$ used for the purification of metals?

Easy

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Identify the appropriate electrodes for the electrolytic refining of a copper sample containing zinc as an impurity.

Easy

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The formation of $Ni(CO)_4$ and its subsequent decomposition into $Ni$ and $CO$ forms the basis of the Mond process.
$Ni + 4CO$ $\xrightarrow{T_1} Ni(CO)_4$ $\xrightarrow{T_2} Ni + 4CO$
What are the values of $T_1$ and $T_2$?

Medium

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If a metal has low oxygen affinity,then the purification of the metal may be carried out by:

Easy

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Which process of purification is represented by the following scheme?$\text{Ti}_{\text{impure}} + 2I_2$ $\xrightarrow{250^{\circ}C} TiI_4$ $\xrightarrow{1400^{\circ}C} \text{Ti}_{\text{pure}} + 2I_2$

Similar Questions

Which of the following is the correct match?

Which of the following methods is $NOT$ used for the purification of metals?

Identify the appropriate electrodes for the electrolytic refining of a copper sample containing zinc as an impurity.

The formation of $Ni(CO)_4$ and its subsequent decomposition into $Ni$ and $CO$ forms the basis of the Mond process.$Ni + 4CO$ $\xrightarrow{T_1} Ni(CO)_4$ $\xrightarrow{T_2} Ni + 4CO$What are the values of $T_1$ and $T_2$?

If a metal has low oxygen affinity,then the purification of the metal may be carried out by:

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Which process of purification is represented by the following scheme?
$\text{Ti}_{\text{impure}} + 2I_2$ $\xrightarrow{250^{\circ}C} TiI_4$ $\xrightarrow{1400^{\circ}C} \text{Ti}_{\text{pure}} + 2I_2$

The formation of $Ni(CO)_4$ and its subsequent decomposition into $Ni$ and $CO$ forms the basis of the Mond process.
$Ni + 4CO$ $\xrightarrow{T_1} Ni(CO)_4$ $\xrightarrow{T_2} Ni + 4CO$
What are the values of $T_1$ and $T_2$?