Question

solution of copper sulphate iron sulphate and sodium sulphate are marked as x, y and z respectively few pieces of alluminium are added to each solution in which solution there will be change​

Answer 1

Solutions of copper sulphate, iron sulphate and zinc sulphate are prepared and marked I, II and III respectively. Few pieces of aluminium are added to each solution. After some time a change will be observed in:

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