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प्रश्न
In electrolytic reduction of alumina _______ is used as a cathode.
विकल्प
sulphur
graphite
platinum
aluminium
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उत्तर
In electrolytic reduction of alumina graphite is used as a cathode.
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संबंधित प्रश्न
In the extraction of aluminium: Why is it necessary to replace anodes time to time?
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Write the name.
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The given reaction shows one of the processes to extract the metals like Iron and Manganese.
\[\ce{MnO2(s) + Al(s) -> Mn(l) + Al2O3(s) + Heat}\]
Identify the substance oxidised and reduced in the above reaction.
