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JEE Main 2025 Jan 29 Shift 2, Chemistry Q10: Common Cell

JEE Main2025Jan 29, Shift 2Chemistry
Q.

Match List-I with List-II :

List-I (Applications)List-II (Batteries/Cell)
(A) Transistors(I) Anode - Zn/Hg ; Cathode - HgO + C
(B) Hearing aids(II) Hydrogen fuel cell
(C) Invertors(III) Anode – Zn; Cathode - Carbon
(D) Apollo space ship(IV) Anode – Pb ; Cathode – Pb |

Choose the correct answer from the options given below :

  1. A

    (A)-(III), (B)-(I), (C)-(IV), (D)-(II)

  2. B

    (A)-(III), (B)-(II), (C)-(IV), (D)-(I)

  3. C

    (A)-(IV), (B)-(III), (C)-(II), (D)-(I)

  4. D

    (A)-(II), (B)-(III), (C)-(IV), (D)-(I)

Solution

Match each application with the cell that powers it:

Transistors → Leclanche (dry) cell: anode, cathode, so (III).

Hearing aids → Mercury button cell: anode, cathode, so (I).

Inverters → Lead storage battery: anode, cathode, so (IV).

Apollo space ship → Hydrogen-oxygen fuel cell, so (II).

(A)-(III), (B)-(I), (C)-(IV), (D)-(II).

Concept behind this question

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