MCQs

1. When the reaction quotient Q=1, the cell potential E is:
A) Zero
B) Maximum
C) Equal to E∘
D) Negative

2. At equilibrium, the value of cell potential is:
A) Maximum
B) Minimum
C) Zero
D) Equal to E∘

4. For a reaction, if concentration of reactants increases, the cell potential generally:
A) Decreases
B) Increases
C) Becomes zero
D) Remains constant

5. The term n in the Nernst equation represents:
A) Number of ions
B) Number of moles
C) Number of electrons transferred
D) Charge on ion

6. The factor 0.0591 in the Nernst equation is valid at:
A) 273 K
B) 300 K
C) 298 K
D) 310 K

9. If all concentrations are doubled, the value of E:
A) Increases
B) Decreases
C) Remains unchanged
D) Becomes zero

12. The Nernst equation connects electrochemistry with:
A) Mechanics
B) Thermodynamics
C) Optics
D) Magnetism