Q54Multiple choice
Match the items of Column I and Column II. Column I Column II (i) Lechlanche cell
- (a)cell reaction 2H2 + O2 → 2H2O (ii) Ni–Cd cell
- (b)does not involve any ion in solution and is used in hearing aids. (iii) Fuel cell
- (c)rechargeable (iv) Mercury cell
- (d)reaction at anode, Zn → Zn2+ + 2e– (e) converts energy of combustion into electrical energy
Show answer
(a) cell reaction 2H2 + O2 → 2H2O (ii) Ni–Cd cell
(d) reaction at anode, Zn → Zn2+ + 2e– (e) converts energy of combustion into electrical energy
(b) does not involve any ion in solution and is used in hearing aids. (iii) Fuel cell
(c) rechargeable (iv) Mercury cell