Question

How many Galvanic cells can be made by using metals like Ag, Cu, Zn and Mg

Answer 1

ANSWER

i. Cu−Ag cell

Anode: Cu(s)→Cu

2+

(aq)+2e

−

Cathode: Ag

+

(aq)+1e

−

→Ag(s)

ii. Zn−Ag cell

Anode: Zn(s)→Zn

2+

(aq)+2e

−

Cathode: Ag

+

(aq)+1e

−

→Ag(s)

(iii)Mg−Ag cell

Anode: Mg(s)→Mg

2+

(aq)+2e

−

Cathode: Ag

+

(aq)+1e

−

→Ag(s)

(iv)Zn−Cu cell

Anode: Zn(s)→Zn

2+

(aq)+2e

−

Cathode: Cu

2+

(aq)+2e

−

→Cu(s)

(v)Mg−Cu cell

Anode: Mg(s)→Mg

2+

(aq)+2e

−

Cathode: Cu

2+

(aq)+2e

−

→Cu(s)

(vi) Mg−Zn cell

Anode: Mg(s)→Mg

2+

(aq)+2e

−

Cathode: Zn

2+

(aq)+2e

−

→Zn(s)