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For the feasibility of a redox reaction ...

For the feasibility of a redox reaction in a cell, the emf should be.

A

negative

B

positive

C

zero

D

some times positive and some times `-ve`

Text Solution

Verified by Experts

The correct Answer is:
B
For a cell to be spontaneous, EMF should be positive.
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NARAYNA- ELECTRO CHEMISTRY-C.U.Q
  1. Which of the following metal will not reduce H(2)O ?

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  2. Arrange the following in the order of their decreasing electrode poten...

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  3. For the feasibility of a redox reaction in a cell, the emf should be.

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  4. The EMF of a galvanic cell is measured by

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  5. Cathodic standard reduction potential minus anodic standard reduction ...

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  6. Consider following sets : Blue colour solution changes to colourl...

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  7. The Nernst equation giving dependence of electrode reduction potential...

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  8. The potential of a single electrode depends upon

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  9. The relationship between standard reduction potential of a cell and eq...

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  10. The relationship between free energy and electrode potential is

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  11. Which of the following statement is correct about Galvanic cell?

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  12. In the galvanic cell, flow of electrons is from

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  13. In a galvanic cell, the reactions taking place in the anodic half cell...

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  14. Which of the following is not true for a galvanic cell represented in ...

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  15. In a galvanic cell, the positive ions of salt bridge migrate towards

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  16. A half cell reaction is one that

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  17. The purpose of the salt bridge in a galvanic cell is to

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  18. Agar-Agar is used in salt bridge since it is

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  19. The chemical used in salt bridge in a galvanic cell is

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  20. The thermodynamic efficiency of cell is given by

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