NCERT Class 12 Chemistry Chapter 2 Electrochemistry PDF – Download with Key Concepts and Formula Sheet

Class 12 Chemistry Chapter 2, titled Electrochemistry, deals with the study of how electricity and chemical reactions are connected. It covers key ideas like redox reactions, galvanic cells, electrolysis, electrode potential, Nernst equation and conductance of electrolytic solutions. This chapter also introduces you to real-life applications such as batteries, corrosion, and fuel cells. With both

Class 12 Chemistry Chapter 2, titled Electrochemistry, deals with the study of how electricity and chemical reactions are connected. It covers key ideas like redox reactions, galvanic cells, electrolysis, electrode potential, Nernst equation and conductance of electrolytic solutions. This chapter also introduces you to real-life applications such as batteries, corrosion, and fuel cells. With both theory and numericals, this chapter carries a lot of weight in board exams and competitive entrances like NEET and JEE.

I’m writing on this topic because Electrochemistry is one of those chapters which often seems tough to students due to so many equations and terms like EMF, cell potential, resistance, etc. But if broken down properly, it becomes simple and even interesting. I remember during my own preparation, once I learnt to connect formulas to concepts like how a battery works or why metals corrode, the chapter became very logical. Many students struggle because they only try to mug up formulas without understanding. So in this article, I’ve explained the important parts of the chapter and shared how to access the official NCERT PDF for this topic to help you study more efficiently.

Important Concepts Covered in Chapter 2 – Electrochemistry

Let’s break down the major topics of this chapter so that it becomes easy to revise:

1. Electrochemical Cells

Galvanic cells (like Daniell cell)
Cell reactions and electrode processes
Representation of a cell using cell notation

2. EMF of a Cell

Electrode potential (oxidation and reduction)
Standard hydrogen electrode (SHE)
Electrochemical series
Relationship between EMF and Gibbs free energy

3. Nernst Equation

Used to calculate EMF under non-standard conditions
Formula:
E = E° – (0.0591/n) × log([products]/[reactants])

4. Conductance of Electrolytic Solutions

Types of conductance:
- Specific conductance (κ)
- Molar conductance (Λm)
- Equivalent conductance (Λeq)
Variation of conductance with concentration
Kohlrausch’s law and its applications

5. Electrolysis and Faraday’s Laws

Electrolysis of molten and aqueous electrolytes
Faraday’s First Law:
m = Z × I × t
Faraday’s Second Law
Electrochemical equivalent

6. Batteries and Fuel Cells

Primary and secondary batteries
Lead storage battery, lithium ion battery
Hydrogen-oxygen fuel cell and its working

7. Corrosion

Concept and mechanism of rusting
Prevention methods

Tips to Study Electrochemistry Effectively

Start with NCERT textbook and understand each definition and diagram
Focus on concepts like cell reactions, standard electrode potentials, and Nernst equation
Learn formulas and practise at least 10 numericals per formula
Use memory tricks or short notes for Faraday’s laws and conductance terms
Make a separate page for all units and their conversions – they matter a lot in numerical questions
Revise real-life applications like corrosion and battery chemistry for 1-mark and case-based questions

Download PDF – NCERT Class 12 Chemistry Chapter 2: Electrochemistry

To access the full and original chapter for free, click here.

NCERT Class 10 Math Chapter 14: प्रायिकता PDF Download

NCERT Class 10 Math Chapter 14 प्रायिकता (Probability) introduces students to the concept of chance and likelihood of events. In this chapter, students learn how to calculate the probability of simple events using the formula P(E) = Number of favourable outcomes ÷ Total number of outcomes. The chapter deals with real-life examples like tossing a

NCERT Class 10 Math Chapter 14 प्रायिकता (Probability) introduces students to the concept of chance and likelihood of events. In this chapter, students learn how to calculate the probability of simple events using the formula P(E) = Number of favourable outcomes ÷ Total number of outcomes. The chapter deals with real-life examples like tossing a coin, rolling a dice, or drawing cards, which makes the subject more interesting and practical. Since probability questions are common in board exams and are generally considered easy, this chapter is highly important for scoring well.

I am writing about this topic because probability is not only an important part of the Class 10 syllabus but also a concept that students will use in higher studies and real life. From predicting weather conditions to calculating risks in business, probability plays a key role. Many students initially find it confusing, but NCERT presents it in a simple and easy-to-understand manner. By practising from the NCERT book, students can build a strong foundation and develop confidence in solving probability problems. Having the PDF makes it easier for learners to access the chapter anytime, revise formulas, and attempt practice questions before exams.