Find here the NCERT chapter-wise Multiple Choice Questions from Class 12 Chemistry book Chapter 3 Electrochemistry with Answers Pdf free download. This may assist you to understand and check your knowledge about the chapters. Students also can take a free test of the Multiple Choice Questions of Electrochemistry. Each question has four options followed by the right answer. These MCQ Questions are selected supported by the newest exam pattern as announced by CBSE.
MCQ Questions for Class 12 Chemistry With Answers
Q1. Galvanised iron sheets are coated with
(i) Carbon
(ii) Copper
(iii) Zinc
(iv) Nickel
(iii) Zinc
Q2. The units of conductivity are:
(i) ohm-1
(ii) ohm-1 cm-1
(iii) ohm-2 cm² equiv-1
(iv) ohm-1 cm²
(ii)
Q3. Fused NaCl on electrolysis gives ………….. on cathode.
(i) Chlroine
(ii) Sodium
(iii) Sodium amalgam
(iv) Hydrogen
(ii) Sodium
Q4. Which of the following statements about the catalyst is true?
(i) A catalyst accelerates the rate of reaction by bringing down the activation energy.
(ii) A catalyst does not participate in reaction mechanism.
(iii) A catalyst makes the reaction feasible by making ∆G more negative.
(iv) A catalyst makes equilibrium constant more favourable for forward reaction.
(i) A catalyst accelerates the rate of reaction by bringing down the activation energy.
Q5. Which shows electrical conductance?
(i) Sodium
(ii) Diamond
(iii) Potassium
(iv) Graphite
(iv) Graphite
Q6. Which of the following is a secondary cell?
(i) Leclanche cell
(ii) Lead storage battery
(iii) Concentration cell
(iv) All of these
(ii) Lead storage battery
Q7. Which of the following describes a general solid?
(i) Compressible
(ii) Incompressible
(iii) Fluid
(iv) Semi-compressible
(ii) Incompressible
Q8. The Standard electrode potentials for the half cell reactions are as follows
Zn ? Zn2+ + 2e– [E° = 0.41 V]
Fe ? Fe2+ + 2e– [E° = 0.76 V]
(i) -0.35 V
(ii) 0.35 V
(iii) + 1.17 V
(iv) -1.17 V
(ii) 0.35 V
Q9. The specific conductance of 0.1 M NaCl solution is 1.06 × 10-2 ohm-1 cm-1. Its molar conductance in ohm-1 cm² mol-1 is
(i) 1.06 × 10²
(ii)1.06 × 10³
(iii) 1.06 × 104
(iv) 53
(i) 1.06 × 10²
Q10. Which of the following is a secondary cell?
(i) Leclanche cell
(ii) Lead storage battery
(iii) Concentration cell
(iv) All of these
(ii) Lead storage battery
Q11. For a chemical reaction A→B, it is found that the rate of reaction doubles when the concentration of A is increased four times. The order of reaction is
(i) Two
(ii) One
(iii) Half
(iv) Zero
(iii) Half
Q12. The products formed when an aqueous solution of NaBr is electrolysed in a cell having inert electrodes are:
(i) Na and Br2
(ii) Na and O2
(iii) H2 ,Br2 and NaOH
(iv) H2 and O2
(iii) H2 ,Br2 and NaOH
Q13. Which of the following is not a good conductor?
(i) Cu
(ii) NaCl (aq)
(iii) NaCl (molten)
(iv) NaCl(s)
(iv) NaCl(s)
Q14. Which of the following statements is incorrect about electrochemical cell?
(i) Electrons are released at anode.
(ii) Chemical energy is converted into electrical energy.
(iii) Salt bridge maintains the electrical neutrality of the electrolytes.
(iv) Cell can work indefinitely.
(iv) Cell can work indefinitely
Q15. Molar conductivity of 0.15 M solution of KCl at 298 K, if its conductivity of 0.0152 S cm-1 w ill be
(i) 124 Ω-1 cm² mol-1
(ii) 204 Ω-1 cm² mol-1
(iii) 101 Ω-1 cm² mol-1
(iv) 300 Ω-1 cm² mol-1
(iii)
Q16. The half life of the first order reaction having rate constant K = 1.7 x 10-5s-1 is
(i) 12.1 h
(ii) 9.7 h
(iii) 11.3 h
(iv) 1.8 h
(iii) 11.3 h
Q17. A 0.5 M NaOH solution offers a resistance of 31.6 ohm in a conductivity cell at room temperature. What shall be the approximate molar
conductance of this NaOH solution if cell constant of the cell is 0.367 cm–1.
(i) 234 S cm² mole–1
(ii) 23.2 S cm² mole–1
(iii) 4645 S cm² mole–1
(iv) 5464 S cm² mole–1
(iv)
Q18. Molar conductivity of 0.15 M solution of KCl at 298 K, if its conductivity of 0.0152 S cm-1 w ill be
(i) 124 Ω-1 cm² mol-1
(ii) 204 Ω-1 cm² mol-1
(iii) 101 Ω-1 cm² mol-1
(iv) 300 Ω-1 cm² mol-1
(iii)
I Think the given NCERT MCQ Questions for class 12 Chemistry book Chapter 3 Electrochemistry with Answers Pdf free download will assist you. If you’ve got any queries regarding CBSE Class 12 Chemistry Electrochemistry MCQs Multiple Choice Questions with Answers, drop a comment below and that we will come back to you soon.
MCQ Questions for Class 12 Chemistry with Answers
- Lesson 1. The Solid State Class 12 MCQ Questions
- Lesson 2. Solutions Class 12 MCQs
- Lesson 3. Electrochemistry Class 12 MCQs
- Lesson 4. Chemical Kinetics Class 12 MCQs
- Lesson 5. Surface Chemistry Class 12 MCQs
- Lesson 6. General Principles and Processes of Isolation of Elements Class 12 MCQ Questions
- Lesson 7. The p-Block Elements Class 12 MCQ Questions
- Lesson 8. The d-and f-Block Elements Class 12 MCQ Questions
- Lesson 9. Coordination Compounds Class 12 MCQ Questions
- Lesson 10. Haloalkanes and Haloarenes Class 12 MCQ Questions
- Lesson 11. Alcohols, Phenols and Ethers Class 12 MCQ
- Lesson 12. Aldehydes, Ketones and Carboxylic Acids Class 12 MCQ
- Lesson 13. Amines Class 12 MCQ
- Lesson 14. Biomolecules Class 12 MCQ
- Lesson 15. Polymers Class 12 MCQ
- Lesson 16. Chemistry in Everyday Life Class 12 MCQ