Question

Match List I with List II

LIST-I (Cell)	LIST-II (Use/Property/Reaction)
A. Leclanche cell	IV. Reaction at anode Zn → Zn2+ + 2e-
B. Ni-Cd cell	III. Rechargeable
C. Fuel cell	I. Converts energy of combustion into electrical energy
D. Mercury cell	II. Does not involve any ion in solution and is used in hearing aids

Choose the correct answer from the options given below:

• A. A-I, B-II, C-III, D-IV
• B. A-III, B-I, C-IV, D-II
• C. A-IV, B-III, C-I, D-II
• D. A-II, B-III, C-IV, D-I

Answer 1

The Correct Option is C

A. Leclanche Cell: This is a primary cell where the reaction at the anode is: \[ \text{Zn} \rightarrow \text{Zn}^{2+} + 2e^- \] Thus, it matches IV.
B. Ni-Cd Cell: The nickel-cadmium cell is a rechargeable secondary cell commonly used in portable devices. Thus, it matches III.
C. Fuel Cell: Fuel cells convert the energy of combustion (e.g., hydrogen and oxygen) into electrical energy. Thus, it matches I.
D. Mercury Cell: Mercury cells are small, primary cells commonly used in hearing aids, and they do not involve any ion in solution.Thus, it matches II.
Final Match: A-IV, B-III, C-I, D-II.