First slide

General methods of extraction of elements from the earth crust

Question

Which process represents the following change,
$Ti + 2 I_{2} ⟶ {TiI}_{4} ⟶ Ti + 2 I_{2} ?$

Moderate

A

Zone refining
B

Mond's process
C

Van Arkel method
D

Poling

Solution

Van Arkel's method is a process of purification of metals involving, converting the metal to a volatile stable compound. The Van Arkel method is based on the principle of thermal decomposition of metal components, into respective metals.

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