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InterviewSolution
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Write down the word which correctly completes the following sentence : “By dissolving aluminium oxide in cryolite a __ [conducting / non-conducting] solution is produced. State why is so much graphite is requires for this electrolytic process. Write the equation for the reaction which takes place at the cathode. |
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Answer» “By dissolving aluminium oxide in cryolite a conducting solution is produced. The graphite anodes are periodically replaced during electrolysis process of fused alumina. At cathode : 2Al3+ + 6e– → 2Al. |
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