Electrochemistry Quiz Online

Electrochemistry concepts are essential to learning for every level in chemistry courses. Here, we have compiled many Electrochemistry quizzes free for students of grades 11 and 12. We hope you will find this very useful for your regular exam preparations and entry tests at undergraduate levels, particularly for medical and engineering students (MDCAT, ECAT, NUST, NUMS, JEE, NEET).

INSTRUCTIONS:

1. Select the correct option after having confirmation in your mind.
2. Once you select one option, the system will not allow you to change.
3. After your selection, the system will automatically let you know about your answer right or wrong.
4. Use the Next Button to continue to take questions on this particular quiz. Every quiz has multiple questions on multiple pages.
5. On the last page, there will be the Finish Button instead of the Next Button.
6. Press Finish Button to check your consolidated quiz result.
7. You should achieve 70% to pass on a particular quiz after attempting all questions in the quiz.
8. You can try unlimited times to improve your score.
9. Best of luck.

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Results

#1. Oxidation Number of Oxygen in OF2 Is:

+2

+2

+1

+1

-2

-2

-1

-1

#2. The E.M.F. Of Zn – Cu Cell Is:

1.5 V

1.5 V

2.0 V

2.0 V

1.10 V

1.10 V

2.5 V

2.5 V

#3. The Standard Reduction Potential Of A Standard Hydrogen Electrode:

0.0 V

0.0 V

2.0 V

2.0 V

1.5 V

1.5 V

1.1 V

1.1 V

#4. The Oxidation Number Of Mn Is K2MnO4 Is:

+ 7

+ 7

+ 2

+ 2

+ 6

+ 6

+ 4

+ 4

#5. Which of the Following Is the Definition of Oxidation:

Gain Of Electrons

Gain Of Electrons

Removal Of O2

Removal Of O2

Loss Of Electrons

Loss Of Electrons

Addition Of H2

Addition Of H2

#6. During Electrolysis Of H2SO4 (Aq), O2 Is Evolved At:

Both (a) and (b)

Both (a) and (b)

Anode

Anode

None of These

None of These

Cathode

Cathode

#7. The E.M.F. Produced By A Voltage Cell Is:

Cell Potential

Cell Potential

Oxidation Potential

Oxidation Potential

Electrode Potential

Electrode Potential

Reduction Potential

Reduction Potential

#8. Which of the Following Is Not a Redox Reaction:

2H2 + O2 ---> 2H2O

2H2 + O2 ---> 2H2O

MnO2 + 4HCl ---> MnCl2 + Cl2 + 2H2O

MnO2 + 4HCl ---> MnCl2 + Cl2 + 2H2O

CaCO3 ---> CaO + CO2

CaCO3 ---> CaO + CO2

Cu + 4HNo3 ---> Cu(NO3)2 + 2NO2 + H2O

Cu + 4HNo3 ---> Cu(NO3)2 + 2NO2 + H2O

#9. Which Element Acts As A Reducing Agent in the Reaction: Zn + H2SO4 ---> ZnSO4 + H2

Zn

Zn

O

O

S

S

H

H

#10. Which Element Acts As an Oxidizing Agent in the Reaction: MnO2 + 4HCl ---> MnCl2 + Cl2 + 2H2O

H

H

O

O

Cl

Cl

Mn

Mn

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