The standard electrode potentials (EoM+/M) of four metals A, B, C and D are −1.2V,0.6V,0.85Vand−0.76V respectively. The increasing sequence of deposition of metals on applying potential is C,B,D,A. C is having maximum standard reduction potential of 0.85V and A is having minimum standard reduction potential of −1.2V. The, increasing sequence of deposition of metals on applying potential is equal to the decreasing sequence of the standard reduction potentials.