In case of Hall's process applied on reduction of $A l_{2} O_{3}$ to Al can be done by using:

Cathode - Al, Anode - Graphite

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Cathode - Graphite, Anode - Graphite

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Cathode - Graphite, Anode - Steel

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Cathode - Steel, Anode - Graphite

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Solution

The correct option is B Cathode - Graphite, Anode - Graphite
Both are graphite
since in Hall's Process both the terminals are carbon content.

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Similar questions

O_{2}

C O_{2}

Explain with reasons:

(a) In the electrolytic reduction of alumina, the graphite anode is gradually consumed.

Why the anode has to be replaced in this process?

(b) Roasting is carried out on sulphide ores and not on carbonate ores.

(d) Electrolytic reduction is done to obtain aluminium?

(e) Why 'the food containing iron salts' should not be cooked in aluminium utensils?

Reaction that takes place at graphite anode in dry cell is:

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