Question
Explain with reason:
A neutral gas other than oxygen is formed at the anode during electrolysis of fused alumina.

Answer

An anode is made of carbon which gets oxidised in the presence of oxygen to form carbon monoxide which is a neutral gas.
$
2 C + O _2 \rightarrow 2 CO
$
An anode is made of carbon which gets oxidised in the presence of oxygen to form carbon monoxide which is a neutral gas.
$
2 C + O _2 \rightarrow 2 CO
$

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