NCERT Solutions For Class 12 Chemistry Chapter 3: Electrochemistry

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Jasmine Grover

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NCERT Solutions for class 12 Chemistry Chapter 3 Electrochemistry are provided in this article. It consists of all important formulas, chemical equations, important laws and numericals. Important topics covered in Class 12 Chemistry Chapter 3 Electrochemistry are:

  1. Electrochemical Cell
  2. Nernst Equation
  3. Electrolytic Cells and Electrolysis
  4. Fuel Cells
  5. Electrolytic & Galvanic Cells
  6. Anode and Cathode
  7. Batteries

Expected No.of Questions: 2 to 4 questions of 9 marks

Download PDF: NCERT Solutions for Class 12 Chemistry Chapter 3 Electrochemistry PDF


NCERT Solutions for Class 12 Chemistry Chapter 3

NCERT Solutions PDF for Class 12 Chemistry Chapter 3 Electrochemistry is given below.

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions

NCERT Solutions


Class 12 Chemistry Chapter 3: Electrochemistry – Important Topics

Important topics of Class 12 Chemistry Chapter 3 Electrochemistry includes the following.

Electrochemistry deals with the study of electricity in chemistry involving electrodes, electrolysis, solutions and solvents. This mechanism is commonly seen in Electrochemical cells. There are two common types of electrochemical cells.

Galvanic Cell: In this, chemical energy is converted to electrical energy. It is also known as voltaic cell. Here, the anode is negatively charged and cathode is positively charged.

Electrolytic Cell: In this, electrical energy is converted to chemical energy. Here, the cathode is negatively charged and anode is positively charged.

Standard Electrode Potential is the standard EMF of the cell. The potential difference between the electrode and electrolyte is known as the potential of electrode and at unit concentration.

E0Cell = E0red, Cathode – E0red, Anode

Nernst equation is establishes the relation between the cell potential of an electrochemical cell, the standard cell potential, temperature, and the reaction quotient. 

\(E_{cell} = E^0 _{cell} - \frac{RT}{nF}ln Q\)

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CBSE CLASS XII Related Questions

  • 1.
    Compound ‘X’ with molecular formula \( C_4H_9Br \) reacts with aqueous KOH to give an alcohol. The rate of this reaction depends only on the concentration of compound ‘X’. When an optically active isomer ‘Y’ of the compound ‘X’ was treated with aqueous KOH solution, the rate of reaction was found to be dependent on concentration of compound ‘Y’ and aqueous KOH both.

    22(a). Write down the structural formula of both ‘X’ and ‘Y’.


      • 2.
        The rate for the following reaction is given by: \[ A + B \rightarrow C, \quad \text{Rate} = k[A][B]^2 \] How is the rate affected if we double the concentration of B?


          • 3.
            Following reaction takes place in one step :
            \( 2A + B \rightarrow 2C \)
            How will the rate of above reaction change if the volume of the reaction vessel is decreased to one third of its original volume? Will there be any change in the order of reaction with the reduced volume?


              • 4.
                Which of the following is most basic?

                  • \( Mn_2O_7 \)
                  • \( MnO_2 \)
                  • \( MnO \)
                  • \( Mn_2O_3 \)

                • 5.
                  Which of the reactions is used in the conversion of a ketone into hydrocarbon?

                    • Reimer-Tiemann reaction
                    • Wolff-Kishner reduction
                    • Aldol condensation
                    • Stephen reaction

                  • 6.
                    Which of the following reagents are used to prepare primary amines by Hofmann bromamide degradation reaction?

                      • (i), (ii) and (iv)
                      • (i) and (iii)
                      • (i), (ii) and (iii)
                      • (i), (iii) and (iv)
                    CBSE CLASS XII Previous Year Papers

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