Chemistry, asked by SwagatalaxmiGoswami, 10 months ago

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8. The following is a sketch of an electrolytic cell used in the extraction of aluminium.
a. What is the substance used in preparing electrodes A and B?
b. At which electrode (A or B) is aluminium formed?
c. Name the two aluminium compounds used as an electrolyte C.
d. Why is it necessary for electrode B to be continuously replaced?​

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Answers

Answered by AakashMaurya21
8

a) Carbon or Graphite is used for making Electrode A and B.

b) It is formed on A (Cathode).

c) Pure alumina(Al2O3) and cryolite(Na3AlF6)

d) Electrode B has to be replaced periodically as it gets oxidized by the oxygen to carbon dioxide at the anode.

Hope it helps......✌

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