Aluminium is extracted from its chief ore, bauxite. The ore is first purified and then the metal is extracted from it by electrolytic reduction.
Write equations for the reactions which takes place at the anode during the extraction of aluminium by the electrolytic process.

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Aluminium is extracted from its chief ore, bauxite. The ore is first purified and then the metal is extracted from it by electrolytic reduction.
Write equations for the reactions which takes place at the anode during the extraction of aluminium by the electrolytic process.

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Text solutionVerified

Reaction at anode:

6 O^{- 2} - 12 e^{-} \to 6 [O]

3 O + 3 O \to 3 O_{2}

Anode is oxidized to carbon monoxide and then to carbon dioxide.

2 C + O_{2} \to 2 CO

2 CO + O_{2} \to 2 C O_{2}

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Question Text	Aluminium is extracted from its chief ore, bauxite. The ore is first purified and then the metal is extracted from it by electrolytic reduction. Write equations for the reactions which takes place at the anode during the extraction of aluminium by the electrolytic process.
Answer Type	Text solution:1
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Aluminium is extracted from its chief ore, bauxite. The ore is first purified and then the metal is extracted from it by electrolytic reduction.Write equations for the reactions which takes place at the anode during the extraction of aluminium by the electrolytic process.

Text solutionVerified

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Aluminium is extracted from its chief ore, bauxite. The ore is first purified and then the metal is extracted from it by electrolytic reduction.
Write equations for the reactions which takes place at the anode during the extraction of aluminium by the electrolytic process.