The process from which chlorine is obtained as a by product is
called the electrolytic processes.
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The process of purifying metal ingots which are suspended as
anodes in an electrolytic bath, alternated with refined sheets of
the same metal, which act as cathodes.
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electrolytic refining
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Martin Charles Hall in 1886
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Type your answer here... It is an electrolytic process by which
an impure metal is purified to give a block of pure metal.