During the process of electrolytic refining of copper, some metals present as impurity settle as ‘anode mud’. These are

In the electrolytic refining of copper, the anode is the impure metal and the cathode is the pure metal. This electrolysis is done in a suitable electrolytic bath having a soluble salt. From the solution, the less basic be the anode mud. So, this anode mud is antimony, selenium, tellurium, silver, gold, and platinum. Comprehension Minerals from which metals can be extracted economically and easily are called ores. The extraction of metals from their ores involves the following processes. (i) Concentration. (ii) Calcination | roasting | leaching. (iii) Reduction. It is carried out by one of the