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12th Standard English Medium Chemistry Subject Electro Chemistry Creative 5 Mark Questions with Solution Part - II Question Bank Software Jun-21 , 2021

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12th Standard English Medium Chemistry Subject Electro Chemistry Creative 5 Mark Questions with Solution Part - II

12th Standard English Medium Chemistry Subject Electro Chemistry Creative 5 Mark Questions with Solution Part - II

12th Standard

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Chemistry

Time : 00:30:00 Hrs
Total Marks : 25
    5 x 5 = 25

  1. Calculate the emf of the cell Zn/ZnO2, OH-, HgO/Hg given that Eo values of OH-, ZnO and OH-, HgO/Hg half cells are -1.216 V and 0.098 V respectively.

  2. Calculate the emf of the cell having the cell reaction 2Ag+ + Zn ⇌ 2Ag + Zn2+ and Eocell = 1.56 V at 25°C when concentration of Zn2+ = 0.1 M and Ag+ = 10 M in the solution.
    \([{ E }_{ cell }={ E }_{ cell }^{ o }-\frac { RT }{ nF } In\frac { [{ Zn }^{ 2+ }] }{ [{ Ag] }^{ 2 } } ]\)

  3. How will you determine the conductivity of an electrolytic solution using a wheatstone, bridge?

  4. Explain SHE as a reference electrode.

  5. Write the electrochemical mechanism of corrosion.

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