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Redox Reactions And Electrochemistry Questions
15 Practice QuestionsStart Practicing Now
- [Easy]The oxidation number of Cr in K₂Cr₂O₇ is:...
- [Easy]Rusting of iron is an example of:...
- [Easy]According to Kohlrausch's law, the molar conductivity at infinite dilution for a salt can be calculated from:...
- [Easy]In a hydrogen-oxygen fuel cell, the overall reaction is:...
- [Easy]The standard cell potential for the cell Zn|Zn²⁺||Cu²⁺|Cu is +1.10 V. If E°(Zn²⁺/Zn) = -0.76 V, then E°(Cu²⁺/Cu) is:...
- [Easy]A concentration cell is formed when:...
- [Easy]Passivation of iron in concentrated HNO₃ is due to formation of:...
- [Medium]According to the electrochemical series, which metal is the strongest reducing agent among the following and can reduce Fe³⁺ to Fe²⁺?...
- [Hard]For the cell Zn|Zn²⁺(0.1M)||Cu²⁺(0.01M)|Cu at 298 K, if E°cell = 1.10 V, the cell potential is: (Take 2.303RT/F = 0.06)...
- [Easy]During electrolysis of aqueous NaCl solution, the product at cathode is:...
- [Medium]How many grams of copper will be deposited at the cathode when 0.5 F of electricity is passed through CuSO₄ solution? (Atomic mass of Cu = 63.5)...
- [Easy]The unit of molar conductivity is:...
- [Easy]The relationship between Gibbs free energy change and cell potential is:...
- [Medium]In the reaction MnO₄⁻ + Fe²⁺ + H⁺ → Mn²⁺ + Fe³⁺ + H₂O (acidic medium), the ratio of MnO₄⁻ to Fe²⁺ is:...
- [Medium]In a lead storage battery during discharge, the reaction at anode is:...