MCQ Quiz on Class 12 Chemistry Chapter 3 Electrochemistry with Answers

We have compiled the MCQ Questions for Class 12 Chemistry Chapter 3 Electrochemistry with Answers Pdf free download covering the entire syllabus for JEE/NEET and Boards. Practice MCQ Questions for Class 12 Chemistry with Answers on a daily basis and score well in exams. Refer to the Electrochemistry Class 12 MCQs Quiz Questions with Answers here along with a detailed explanation.

Electrochemistry Class 12 MCQs Questions with Answers

MCQ Questions for Class 12 Chemistry Chapter 3 Electrochemistry with Answers

Please enter your email:

1. The reaction, 3ClO– (aq) → ClO3 (aq) + 2Cl– (aq) is an example of:

 
 
 
 

2. If E°Fe2+/Fe = -0.441 V and E°Fe2+/Fe2+ = 0.771 V, the standard EMF of the reaction,
Fe + 2Fe3+ → 3Fe2+ will be:

 
 
 
 

3. The emf of the cell:
Ni / Ni2+ (1.0 M) // Au3+ (1.0 M) / Au (E° = -0.25 V for Ni2+/Ni; E° = 1.5 V for Au3+/Au) is:

 
 
 
 

4. The highest electrical conductivity of the following aqueous solutions is of?

 
 
 
 

5. Units of the properties measured are given below. Which of the properties has been not matched correctly ?

 
 
 
 

6.  Molar conductivity of 0.15 M solution of KCl at 298 K, if its conductivity of 0.0152 S cm-¹ will be:

 
 
 
 

7. The standard reduction potentials of X, Y, Z metals are 0.52, -3.03, -1.18 respectively. The order of reducing power of the corresponding metals is:

 
 
 
 

8. A conductivity cell containing electrodes made up of:

 
 
 
 

9. The standard reduction potentials of Cu2+/Cu and Cu2+/Cu+ are 0.337 and 0.153 respectively. The standard electrode potential of Cu+/Cu half cell is:

 
 
 
 

10. 4.5 g of aluminium (at. mass 27 amu) is deposited at cathode from Al3+ solution by a certain quantity of electric charge. The volume of hydrogen produced at STP from H+ ions in solution by the same quantity of electric charge will be:

 
 
 
 

11. How many coulombs are required for the oxidation of 1 mole of H2O to O2?

 
 
 
 

12. Standard solution of KNO3 is used to make a salt bridge because:

 
 
 
 

13. Faraday’s law of electrolysis is related to:

 
 
 
 

14. Fused NaCl on electrolysis gives ………….. on cathode.

 
 
 
 

15. The emf of the cell:
Ni / Ni2+ (1.0 M) // Au3+ (1.0 M) / Au (E° = -0.25 V for Ni2+/Ni; E° = 1.5 V for Au3+/Au) is:

 
 
 
 

16.  Electrical conductance through metals is called metallic or electronic conductance and is due to the movement of electrons. The electronic conductance depends on:

 
 
 
 

17. For a certain redox reaction, E° is positive. This means that:

 
 
 
 

18. The E0M3+/M2+ values for Cr, Mn, Fe and Co are -0.41, + 1.57, + 0.77 and +1.97 V respectively. For which one of the metals, the change in oxidation state from +2 to +3 is easiest?

 
 
 
 

19. When heating one end of a metal plate, the other end gets hot because of:

 
 
 
 

20. The charge required for the reduction of 1 mol of MnO4– to MnO2 is:

 
 
 
 

Hope the information shed above regarding MCQ Questions for Class 12 Chemistry Chapter 3 Electrochemistry with Answers Pdf free download has been useful to an extent. If you have any other queries of CBSE Class 12 Chemistry Electrochemistry MCQs Multiple Choice Questions with Answers, feel free to comment below so that we can revert back to us at the earliest possible.
By Team Study Rate

Sneha

Master's in Biology, Skilled in vocational training. Strong Analytical and creative knowledge.

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.