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.

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