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(D) The $Van \ Arkel$ method is used for the refining of $Zr$ and $Ti$. The $Van \ Arkel$ process involves heating the impure metal with iodine to for

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Van Arkel method

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(D) The $Van \ Arkel$ method is used for the refining of $Zr$ and $Ti$. The $Van \ Arkel$ process involves heating the impure metal with iodine to form a volatile complex. This complex,upon decomposition at high temperatures,yields the pure metal. For $Zirconium$: $Zr 	ext{ (impure)} + 2I_2 ightarrow ZrI_4$ $ZrI_4 ightarrow Zr 	ext{ (pure)} + 2I_2 	ext{ (at } 1800 \ K)$ For $Titanium$: $Ti 	ext{ (impure)} + 2I_2 ightarrow TiI_4$ $TiI_4 ightarrow Ti 	ext{ (pure)} + 2I_2 	ext{ (at } 1800 \ K)$

List-$I$	List-$II$
$(A)$ Nickel	$(1)$ Electrolytic refining
$(B)$ Titanium	$(2)$ Zone refining
$(C)$ Germanium	$(3)$ van-Arkel method
$(D)$ Copper	$(4)$ Mond process

Which of the following methods is used for the refining of impure zirconium?

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Match the following items of List-$I$ with those of List-$II$:
List-$I$ List-$II$
$(A)$ Nickel $(1)$ Electrolytic refining
$(B)$ Titanium $(2)$ Zone refining
$(C)$ Germanium $(3)$ van-Arkel method
$(D)$ Copper $(4)$ Mond process

The correct answer is:

Explain the purification of metals in the vapour phase with an example.

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