Home
Class 12
CHEMISTRY
Consider the following relations for emf...

Consider the following relations for `emf` of a electrochemical cell
(i) emf of cell = (Oxidation potential of anode)-(Reduction potential of cathode)
(ii) emf of cell = (Oxidation potential of anode)+(Reduction potential of cathode)
(iii) emf of cell = (Reduction potential of anode)+(Reduction potential of cathode)
(iv) emf of cell = (Oxidation potential of anode)-(Oxidation potential of cathode)
Which of the above realtions are correct?

A

(iii) and (i)

B

(i) and (ii)

C

(iii) and (iv)

D

(ii) and (iv)

Text Solution

Verified by Experts

The correct Answer is:
d
We know that oxidation potential =- reduction potential and vice versa
`therefore`EMF of the cell =Reduction potential of cathode - Reduction potential of anode =Reduction potential of cathode + Oxidation potential of anode =Oxdiation potential of anode - oxidation potential of cathode
Thus option (d) is correct
Promotional Banner

Topper's Solved these Questions

  • REDOX REACTIONS

    PRADEEP|Exercise Matching Type Question|3 Videos

  • REDOX REACTIONS

    PRADEEP|Exercise Matrix Match Type Question|3 Videos

  • REDOX REACTIONS

    PRADEEP|Exercise Problems|4 Videos

  • POLYMERS

    PRADEEP|Exercise IMPORTANT Questions (For Board Examination)|27 Videos

  • SOLUTIONS

    PRADEEP|Exercise IMPORTANT QUESTIONS FOR BOARD EXAMINATION|31 Videos

Similar Questions

Explore conceptually related problems

Consider the following relations for (i) EMF of the cell =(Oxidation potential of anode) -(Reduction potential of cathode) (iii) EMF of the cell=(Reduction potential of anode) + (Reduction potential of cathode) (iv) EMF of the cell=(Oxidation potential of the anode)-(Oxidation potential of the cathode) which of the following above reactions are correct?

Cathodic standard reduction potential minus anodic standard reduction potential is equl to

In an electrochemical cell, anode and cathode are:

The reduction potential of hydrogen half cell will be negative if :

The oxidation potential of hydrogen half-cell will be negative if:

PRADEEP-REDOX REACTIONS -Multiple Choice Question
  1. On the basis of the following E^(@) values, the stongest oxidizing age...

    Text Solution

    |

  2. Standard reduction potentails of the half reactions are given below: ...

    Text Solution

    |

  3. The products formed when an aqueous solution of NaBr is electrolysed i...

    Text Solution

    |

  4. In the electrolysis of aqueous solutoin of copper suphate using copper...

    Text Solution

    |

  5. Which of the following statement is / are true for an electronchemical...

    Text Solution

    |

  6. Consider the following relations for emf of a electrochemical cell (...

    Text Solution

    |

  7. Two electrochemical cell Zn|Zn^(2+)||Cu^(2+)|Cu and Fe |Fe^(2+)|Cu^(...

    Text Solution

    |

  8. The emf of the cell involving the following reaction, 2Ag^(+) +H(2) ra...

    Text Solution

    |

  9. The oxidation potentials of Zn, Cu, Ag, H(2) and Ni are 0.76, -0.34, 0...

    Text Solution

    |

  10. Consider the redox reaction 2S(2)O(3)^(2-)+I(2)rarrS(4)O(6)^(2-)+2I^...

    Text Solution

    |

  11. Which of the following statements about the following reaction is//are...

    Text Solution

    |

  12. For the reaction : I^(-)+ClO(3)^(-)+H(2)SO(4) to Cl^(-)+HSO(4)^(-)+I(2...

    Text Solution

    |

  13. Which of the following act both as an oxidising as well as reducing ag...

    Text Solution

    |

  14. Which of the following substances undergo(s) disproportionation reacti...

    Text Solution

    |

  15. The concept of oxidation number (O.N) is very important in under stand...

    Text Solution

    |

  16. The concept of oxidation number (O.N) is very important in under stand...

    Text Solution

    |

  17. The concept of oxidation number (O.N) is very important in under stand...

    Text Solution

    |

  18. For the reaction M^(x+)+MnO(4)^(ө)rarrMO(3)^(ө)+Mn^(2+)+(1//2)O(2) ...

    Text Solution

    |

  19. Bleaching powder and bleach solution are produced on a large scale and...

    Text Solution

    |

  20. Bleaching powder and bleach solution are produced on a large scale and...

    Text Solution

    |