- some can be reduced by hydrogen, carbon and carbon monoxide (e.g. copper oxide, lead oxide, iron (II) oxide)
- some cannot (e.g. Al2O3, MgO) - refer to activity series)
Write a balanced chemical equation for each of the following reactions :
(i) Reduction of copper (II) oxide by hydrogen
Explain with reasons:
In the electrolytic reduction of alumina, the graphite anode is gradually consumed.
Complete the following by selecting the correct option from the choices given:
The metal whose oxide, which is amphoteric, is reduced to metal by carbon reduction ____________. (Fe/Mg/Pb/Al)
Name the compound added to pure alumina to lower the fusion temperature during the electrolytic reduction of alumina.