Question

2. When zinc rode is dipped in copper sulphate solution the colour of copper sulphate solution is changed because of (a) oxidation of Zn2+ion (b) reduction of Zn solid (c) Reduction of Cu solid (d) Oxidation of Zn solid​

Answer 1

Answer:

When an iron nail immersed in the solution of copper sulphate than iron displaces copper from the solution of copper sulphate because iron is more reactive than copper. Therefore copper sulphate solution colour changes from blue to pale green.