The copper is purified by electrolysis.
Name the material used for the negative electrode.
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Q.The copper is purified by electrolysis.
(☞ﾟヮﾟ)☞Copper is purified by electrolysis . Electricity is passed through solutions containing copper compounds, such as copper(II) sulfate. The anode (positive electrode ) is made from impure copper and the cathode (negative electrode) is made from pure copper.
Q. Name the material used for the negative electrode.
(☞ﾟヮﾟ)☞Lead and lead dioxide in an aqueous solution of sulfuric acid yield a lead acid accumulator composed of two electrodes: The metal and the metal oxide in contact with sulfuric acid. ... Both reactions yield lead sulfate; in both reactions, sulfuric acid from the electrolyte solution is consumed
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