describe the process of preparration of aluminium by the electrolysis of qlumina with the help of diagram
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Aluminium is prepared by the electrolysis of aluminium oxide, Al2O3.
Al2O3 has a melting point of 2072 °C, so it would be expensive to melt it.
Instead, it is dissolved in molten cryolite, Na3AlF6, which melts at 1012 °C.
The dissolved Al2O3 lowers the melting point further to about 950 °C.
The anodes of the electrolysis cell are made of graphite (carbon), and the graphite lining of a steel tank also serves as the cathode.
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brainliest mark plzzz
Al2O3 has a melting point of 2072 °C, so it would be expensive to melt it.
Instead, it is dissolved in molten cryolite, Na3AlF6, which melts at 1012 °C.
The dissolved Al2O3 lowers the melting point further to about 950 °C.
The anodes of the electrolysis cell are made of graphite (carbon), and the graphite lining of a steel tank also serves as the cathode.
#mufiii
brainliest mark plzzz
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