Extraction and Purification of Metals

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Metals such as silver and copper, are refined or purified by electrolysis. The impure metals are made the anodeAn anode is an electrode of a polarized electrical device through which conventional current enters the device. It is the positive part of electrolytes where oxidation takes place. More, while the pure metals are made the cathodeA cathode is the electrode from which a conventional current leaves the electrolyte. It is the negative part of the cell where reduction takes place. More, the electrolyteAn electrolyte is a substance that dissociates in water into charged particles called ions. Positively charged ions are called cations. Negatively charged ions are called anions. Simply, an electrolyte is a... More is an aqueous solutionA solution in which the solvent is water is referred to as an aqueous solution. It is mostly shown in chemical equations by appending (aq) to the relevant chemical formula. For... More of the salt of