Answer:
During extraction of
metals by electrochemical method the following two. points must be considered
(i) Reactivity of
metals If the metals are quite reactive and are expected to react with water
then the metals should be extracted by the electrolysis of their purified
molten ore rather than their aqueous solution.
(ii) Suitability
of electrodes The electrods selected should not react with the product of electrolysis.
If at all they react, then the electrodes must be made up of a material which is
quite cheap since their periodic replacement should not increase the cost of
the process.
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