Aluminium is refined by

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(A) The $Hoopes$ process is an electrolytic refining method used to obtain $Aluminium$ metal of very high purity $(99.99\%)$.The $Baeyer$ process is u

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Hoope's process

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(A) The $Hoopes$ process is an electrolytic refining method used to obtain $Aluminium$ metal of very high purity $(99.99\%)$.The $Baeyer$ process is used for the extraction of alumina $(Al_2O_3)$ from bauxite ore.The $Hall-Héroult$ process is the primary industrial method for the electrolytic reduction of alumina to produce $Aluminium$ metal.The $Serpek$ process is used for the purification of bauxite ore containing silica $(SiO_2)$ as the main impurity.

List-$I$	List-$II$
$a$. Mercury	$i$. Vapour phase refining
$b$. Copper	$ii$. Distillation refining
$c$. Silicon	$iii$. Electrolytic refining
$d$. Nickel	$iv$. Zone refining

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Match List-$I$ with List-$II$:

List-$I$ List-$II$

$a$. Mercury $i$. Vapour phase refining

$b$. Copper $ii$. Distillation refining

$c$. Silicon $iii$. Electrolytic refining

$d$. Nickel $iv$. Zone refining

Choose the most appropriate answer from the options given below:

The process of zone refining is used in the purification of

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