Extraction of Aluminium

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Extraction of Aluminium: Overview

This Topic covers sub-topics such as Extraction of Aluminum, Bayer's Process, Hall's Process, Electrolysis of Molten Alumina and, Goldschmidt's Alumino Thermite Process

Important Questions on Extraction of Aluminium

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In the commercial electrochemical process for aluminium extraction, the electrolyte used is: 

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In the alumino-thermite process, aluminium acts as:

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In the thermite process … is used as a reducing agent.

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Aluminium is extracted by the electrolysis of which of the following?

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In Hall-Heroult process, the following is used for reducing Al2O3 :-

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Which of the following is used for the reduction of Al2O3?

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Which of the following reaction is not involved in thermite process

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Copper is extracted from

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Which of the following benefaction processes is used for the mineral, Al2O3.2H2O?

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Write the composition of bauxite.

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Explain the role of Na3AlF6 or CaF2 in the extraction of aluminium.

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Which of the following ore is reduced by alumino thermite process?

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What will happen, if anode is made of nickel instead of graphite in the extraction of aluminium from AlCl3?

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In the electrometallurgy of aluminium, the anode used is

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In Hall-Heroult process, CaF2 is used

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Hall Heroult method is used for the extraction of

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Which of the following is used as reducing agent in Goldschmidt method?

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Impurities present in bauxite ore is separated by leaching process using _____ method.

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Which of the following is not a mineral of aluminium?

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During electrolysis of aluminium oxide, aluminium gains three electrons and forms: