Chapter 3: Electrochemistry

Focusing on Chapter 3: Electrochemistry from the Class 12 CBSE NCERT Chemistry textbook, here are some of the most frequently asked questions:

1. Nernst Equation Application: Calculate the cell potential for a galvanic cell under non-standard conditions using the Nernst equation.

2. Electrolytic vs. Galvanic Cells: Differentiate between electrolytic and galvanic cells in terms of their functioning and applications.

3. Kohlrausch's Law: State Kohlrausch's Law of independent migration of ions and explain its significance in determining the limiting molar conductivity of weak electrolytes.

4. Electrochemical Series: Discuss the electrochemical series and predict the feasibility of redox reactions based on standard electrode potentials.

5. Faraday's Laws of Electrolysis: Explain Faraday's First and Second Laws of Electrolysis and their mathematical formulations.

6. Conductance Measurements: Describe the method to determine the cell constant of a conductivity cell and its importance in measuring the conductivity of solutions.

7. Corrosion Mechanism: Explain the electrochemical theory of rusting of iron and suggest methods to prevent corrosion.

8. Concentration Cells: Define concentration cells and derive an expression for the electrode potential of a concentration cell with transference.

9. Primary and Secondary Batteries: Compare and contrast primary and secondary batteries with suitable examples, focusing on their electrochemical reactions and applications.

10. Fuel Cells: Describe the working principle of a hydrogen-oxygen fuel cell and discuss its advantages over conventional energy sources.