By: Prof. Dr. Fazal Rehman | Last updated: March 3, 2022
MCQs Of Electrochemistry
1.The potential of a hydrogen electrode at pH = 10 is ____.A. 0.59 VB. 0.00 VC. –0.59 VD. –0.059 VE. None of These
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C
2. Which of the following element act as inert electrode _____.A. Cu B. PtC. Ag D. Both A and BE. None of These
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B
3. Which of the following electrolytic solutions has the least specific conductance?A. 0.02 N B. 0.2 NC. 2 ND. 0.002 NE. None of These
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D
4.Which of the following cell is not rechargeable?A. Lead storage battery B. Silver oxide cellC. Fuel cellD. Ni-Cd cellE. None of These
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B
5. The highest electrical conductivity of the following aqueous solutions is of ______.A. 0.1 M acetic acidB. 0.1 M chloroacetic acidC. 0.1 M fluoroacetic acidD. 0.1 M difluoroacetic acidE. None of These
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D
6. Galvanic cell is ______.A. Chemical energy is converted into electricity B. Chemical energy is converted into heatC. Electrical energy is converted into chemical energy D. Electrical energy is converted into heatE. None of These
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A
7. The degree of dissociation of week electrolyte increases as ____.A. Pressure increases B. Dilution decreasesC. Dilution increases D. Both A and BE. None of These
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C
8. An increase in equivalent conductance of a strong electrolyte with dilution is mainly due to______.A. Increase in both i.e. number of ions and ionic mobility of ions.B. Increase in number of ionsC. Increase in ionic mobility of ionsD. 100% ionization of electrolyte at normal dilutionE. None of These
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C
9. Electricity in voltaic cell is produced due to ______.A. Neutralization B. OxidationC. Reduction D. Both b & cE. None of These
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D
10. Reaction at anode is called ______.A. Oxidation B. ReductionC. Redox D. DecompositionE. None of These
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A
11. Right half cell contains __________ electrode.A. A1 B. ZnC. Cu D. FeE. None of These
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C
12. Greater value of standard reduction potential greater will be tendency .
A. To get oxidized B. To get reducedC. To accept electrons D. Both b and cE. None of These