Which of the following compounds is used for | vedclass

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(A) The extraction of aluminum is carried out by the Hall-$H$éroult process. In this process,pure alumina $(Al_2O_3)$ is dissolved in molten cryolite

Vedclass · Accepted Answer

$Al_2O_3$

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(A) The extraction of aluminum is carried out by the Hall-$H$éroult process. In this process,pure alumina $(Al_2O_3)$ is dissolved in molten cryolite $(Na_3AlF_6)$ and fluorspar $(CaF_2)$,which lowers the melting point of the mixture and increases its electrical conductivity. Therefore,$Al_2O_3$ is the compound used for the extraction of aluminum by electrolysis.

Which of the following compounds is used for the extraction of aluminum by electrolysis?

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