Consider a metal, M, with two oxidation states, 1 and 2. In a solution of 0.75 M NH3/0.75 MNH4Cl, M2 is reduced to M near -0.3 V (vs S.C.E.), and M is reduced to M (in Hg) near -0.7 V. In the sampled current polarograms below, label where each reduction takes place. Also, label each polarogram as resulting from a solution containing M2 or a solution containing M .If the working electrode used in the above polarograms was Pt instead of Hg, which, if any, of the reduction potentials would you expect to change?