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प्रश्न
Explain with reason:
In the electrolytic reduction of alumina, the graphite anode is gradually consumed.
Explain with reason:
Why the anode has to be replaced from time to time in this process?
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उत्तर
In the electrolytic reduction of alumina, the graphite (anode) is oxidised by oxygen to CO and further forms CO2, so it is consumed and has to be replaced from time to time.
\[\ce{2C + O2 -> 2CO}\]
\[\ce{2CO + O2 -> 2CO2}\]
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संबंधित प्रश्न
Complete the following by selecting the correct option from the choices given:
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Write balanced equation for the following reaction:
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Name the process used for the enrichment of sulphide ore.
Answer the following question with respect by hydrogen : Identify the components of the electrolyte other than pure alumina and the role played by each.
