Which of the following is electrolyzed for th | vedclass

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

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Mixture of alumina with molten cryolite

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(C) The extraction of aluminum is carried out by the Hall-Heroult process. In this process,pure $Al_2O_3$ (alumina) is dissolved in molten cryolite $(Na_3AlF_6)$ or fluorspar $(CaF_2)$. This mixture lowers the melting point of the electrolyte and increases its electrical conductivity. Therefore,the electrolyte used is a mixture of alumina with molten cryolite.

Which of the following is electrolyzed for the extraction of aluminum?

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