NCERT Solutions for Class 12 Chemistry Chapter 3 Electrochemistry

 

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NCERT Solutions for Class 12 Chemistry chapter 3 Electrochemistry

Electrochemistry is the study of interconversion of chemical energy and electrical energy. This is an important chapter for both CBSE Board exam as well as competitive exams. It carries 5 marks in the Board exams. The devices where these conversions are takes place are known as cells. In this chapter, there are 18 questions. The step-by-step  NCERT Solutions for Class 12 Chemistry chapter 3 Electrochemistry are prepared by our subject experts to clear students doubts.

After completing the NCERT Class 12 Chemistry chapter 3 Electrochemistry, students will be able to describe an electrochemical cell, differentiate between electrolytic and galvanic cells, apply Nernst equation for calculating the emf of galvanic cell, also able to  derive relation between standard potential of the cell, Gibbs energy of cell reaction and its equilibrium constant and many more. The solutions of Class 12 Chemistry chapter 3 Electrochemistry will also help students to understand Kohlrausch law and its application.

Important points and formulas of  NCERT Class 12 Chemistry chapter 3 Electrochemistry-

1. Conductance(G) is the reciprocal of resistance (R) and specific conductance or conductivity(k) is inverse of resistivity(\rho )                  

     \\G=\frac{1}{R}=\frac{1}{\rho }\left ( \frac{a}{l} \right )\\k=G\left ( \frac{l}{a} \right )

2. l/a is called the cell constant of conductivity cell.

3. Equivalent Conductivity is defined as the conductance of a solution containing 1g of an electrolyte.

         \\ \Lambda _{eq}=K\times V\\

4. Nerst equation

      aA+bB \rightarrow cC+dD

    E_{cell} = E_{cell}^{o}-\frac{0.0591}{n}log\frac{\left [ C \right ]^{c}\left [ D \right ]^{d}}{\left [ A \right ]^{a}\left [ B \right ]^{b}}

Topics and Sub-topics of NCERT Class 12 Chemistry Chapter 3 Electrochemistry-

3.1 Electrochemical Cells

3.2 Galvanic Cells

3.3 Nernst Equation

3.4 Conductance of Electrolytic Solutions

3.5 Electrolytic Cells and Electrolysis

3.6 Batteries    

3.7 Fuel Cells

3.8 Corrosion

NCERT Solutions for Class 12 Chemistry Chapter 3 Electrochemistry- Exercise Questions

Q-3.1 How would you determine the standard electrode potential of the system Mg^ 2 + | Mg?

Q-3.2 Can you store copper sulphate solutions in a zinc pot?

View All Solved Exercise Questions here.

NCERT Solutions class 12 – Chemistry

Chapter 1

The Solid State

Chapter 2

Solutions

Chapter 4

Chemical Kinetics

Chapter 5

Surface Chemistry

Chapter 6

General Principles and Processes of isolation of elements

Chapter 7

The P-block elements

Chapter 8

The d and f block elements

Chapter 9

Coordination compounds

Chapter 10

Haloalkanes and Haloarenes

Chapter 11

Alcohols, Phenols, and Ethers

Chapter 12

Aldehydes, Ketones and Carboxylic Acids

Chapter 13

Amines

Chapter 14

Biomolecules

Chapter 15

Polymers

Chapter 16

Chemistry in Everyday life

 

NCERT Solutions for Class 12- Subject wise

NCERT solutions for Class 12 Biology

NCERT solutions for Class 12 Maths

NCERT solutions for Class 12 Chemistry

NCERT solutions for Class 12 Physics

 

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