Answer the following questions with respect to the electrolytic process in the extraction of aluminium:
Identify the components of the electrolyte other than pure alumina and the role played by each.
Components of electrolyte: Cryolite and fluorspar
The role played by each electrolyte is given below:
Answer the following questions with respect to the electrolytic process in the extraction of aluminium:
Explain why powdered coke is sprinkled over the electrolytic mixture.
Complete the following by selecting the correct option from the choices given:
The metal which does not react with water or dilute H2SO4 but reacts with
concentrated H2SO4 is _________. (Al/Cu/Zn/Fe)
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)
The divalent metal whose oxide is reduced to metal by electrolysis of its fused salt is __________. (Al/Na/Mg/K)