Match Column-I (Types of cell) with Column-II (Characteristics shown by cells) and mark the appropriate option:

Column I
(Type of cell)
Column II
(Characteristics)
A Lechlanche cell  1. Cell reaction 2H2 +O2 → 2H2O
B Ni-Cd cell  2. Does not involve any ion in solution and is used in hearing aids.
C Fuel cell  3.  Rechargeable
Mercury cell  4. -Reaction at anode, Zn  → Zn2+ + 2e-

   
Codes:

Options:  A   B   C   D 
1. 2  3  4  1
2.  4 3 1 2
3. 1 4 3 2
4. 4 1 3 2

Hint:  Lechlanche cell is also known as dry cell
A. Lechlanche cell The electrode reaction occurs at Lechlanche cell are
At anode          Zn —> Zn2+ + 2e-
At cathode        MnO4 + NH4+ +e- —> MnO(OH)+ NH3
B. Ni-Cd cell is rechargeabie. So, it has more life time.
C. Fuel cell produces energy due to combustion. So, a fuel cell converts the energy of combustion into electrical energy e.g.,
2H2 +O2 —> 2H2O
D. Mercury cell does not involve anion in solution and is used in hearing aids.