ICSE Class 10 Chemistry 2022 Solved Paper
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Question : 41
Total: 55
Select the right answer from the brackets and complete the statements :
In electrolysis of fused Alumina, the anode is made of (a) .............. [gas carbon/ graphite] and the product formed at cathode is (b).............. [oxygen/aluminium].
In electrolysis of fused Alumina, the anode is made of (a) .............. [gas carbon/ graphite] and the product formed at cathode is (b).............. [oxygen/aluminium].
Solution:
In electrolysis of fused Alumina, the anode is made of (a) Graphite (carbon) and the product formed at cathode is (b) Aluminium. Supplement Point for Learning
Cathode (Inner carbon lining of the electrolytic cell)
4 Al 3 + + 12 e − → 4 Al
Anode (Thick Rods of Graphite)
6 O 2 − − 12 e − → 6 [ O ]
3 O + 3 O → 3 O 2
Cathode (Inner carbon lining of the electrolytic cell)
Anode (Thick Rods of Graphite)
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