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Given : E(Cr^(3+)|Cr)^(@)=-0.74V, E(Fe^(...

Given : `E_(Cr^(3+)|Cr)^(@)=-0.74V, E_(Fe^(3+)|Fe^(2+))^(@)=+0.77V`. What happens when Cr is mixed with a solution of `Fe(III)` ion?

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`Fe^(3+)` will be reduced to `Fe^(2+)` and Cr will be oxidised to Cr(III)
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CHHAYA PUBLICATION-ELECTROCHEMISTRY-EXERCISE (SHORT ANSWER-TYPE QUESTIONS)
  1. Explain the causes of rusting of iron.

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  2. A few half - cell reactions and their standard reduction potentials ar...

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  3. Given : E(Cr^(3+)|Cr)^(@)=-0.74V, E(Fe^(3+)|Fe^(2+))^(@)=+0.77V. What ...

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  4. The standard reduction potential of metals A, B, C and D are +0.80V, -...

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  5. Arrange Al, Cd, Pb & Zn in order of increasing chemical activity. Give...

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  6. Deduce a relation between Faraday (F), Avogadro’s number (N) and charg...

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  7. Determine how many coulombs make 1 faraday with the help of Faraday's ...

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  8. How are resistance and conductivity related? What do you understand by...

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  9. The molar conductivity at infinite dilution of an electrolyte reaches ...

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  10. Define molar conductivity. Establish a mathematical equation between m...

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  11. The molar conductivity changes with the concentration of an electrolyt...

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  12. What is molar conductivity at infinite dilution?

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  13. State and explain the Kohlrausch's law of independent migration of ion...

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  14. From Kohlrausch's law of independent migration of ions, how is the mol...

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  15. Dissociation of a molecule of an electrolyte produces cations (or anio...

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  16. (a) Define electrochemical equivalent from Faraday's 1st law.

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  17. (b) What is the total charge of 1.6g O^(2-) ion ?

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  18. Aqueous solution of AgNO(3) is electrolysed using the following elect...

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  19. Aqueous solution of AgNO(3) is electrolysed using the following elect...

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  20. (a) Which of Na^(+) or K^(+) has a higher molar conductivity? Why?

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