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

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

    • 2.
      Calculate emf of the following cell at 298 K: \[ \text{Cr(s)} \, | \, \text{Cr}^{3+} (aq) \, (0.1\, M) \; || \; \text{Fe}^{2+} (aq) \, (0.01\, M) \, | \, \text{Fe(s)} \] Given: \[ E^\circ_{\text{Cr}^{3+}/\text{Cr}} = -0.74 \, V, \quad E^\circ_{\text{Fe}^{2+}/\text{Fe}} = -0.44 \, V, \quad \log 10 = 1 \]


        • 3.
          Assertion (A): Highest oxidation state of Mn is +7 in most of the transition elements.
          Reason (R): Transition metals exhibit variable oxidation states.

            • Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
            • Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A).
            • Assertion (A) is true, but Reason (R) is false.
            • Assertion (A) is false, but Reason (R) is true.

          • 4.
            Which of the following Grignard Reagent will be used to prepare cyclohexylmethanol when treated with methanal?

              • A
              • B
              • C
              • D

            • 5.
              Consider the following reaction and identify A and B: \[ CH_3Cl + NaI \xrightarrow{\text{dry acetone}} A + B \]

                • A = CH\(_3\)I, B = NaCl
                • A = CH\(_3\)OH, B = NaCl
                • A = CH\(_3\)CHO, B = NaCl
                • A = C\(_2\)H\(_6\), B = CH\(_3\)I

              • 6.
                How will you confirm the presence of five –OH groups in a glucose molecule, which are attached to different carbon atoms?

                  CBSE CLASS XII Previous Year Papers

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