What reaction occurs at the cathode in the electrolyte method of extraction of aluminium? [1]
OR
Write whether the following statement is True or False: [1]
Free electrons carry electricity through electrolytic substances.
WBBSE
Class X
Physical Science
Metallurgy
01 Mark
2022
At the cathode in the electrolyte method of aluminium extraction, aluminium ions (Al³⁺) are reduced to form aluminium metal (Al). The reaction is:
Al3+ +3e− →Al
OR
False. Free ions, not free electrons, carry electricity through electrolytic substances.
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