Refer to the list of electrode potentials below to answer parts a to d.

Ag⁺(aq) + e^– ⇌ Ag(s) voltage = +0.80 V        

Co²⁺(aq) + 2e^– ⇌ Co(s) voltage = –0.28 V
Cu²⁺(aq) + 2e^– ⇌ Cu(s) voltage = +0.34 V
Pb²⁺(aq) + 2e^– ⇌ Pb(s) voltage = –0.13 V
Zn²⁺(aq) + 2e^– ⇌ Zn(s) voltage = –0.76 V

a. Which metal in the list is the best reducing agent?

b. Which metal ion in the list is most difficult to reduce?

c. Which metal in the list is most reactive?

d. Which metal ion in the list is the easiest to reduce?