Home
Class 12
CHEMISTRY
Use the given standard reduction potenti...

Use the given standard reduction potentials to determine the reduction potential for this half-reactions.
`MnO_(4)^(-)(aq) + 3e^(-) + 4H^(+) rightarrow MnO_(2)(S) + 2H_(2)O(l)`

A

1.695 V

B

2.825 V

C

3.389 V

D

5.086 V

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTY

    GRB PUBLICATION|Exercise Batteries|10 Videos

  • ELECTROCHEMISTY

    GRB PUBLICATION|Exercise Thermodynamics in Electrochemistry|22 Videos

  • ELECTROCHEMISTY

    GRB PUBLICATION|Exercise Galvanic Cell and Salt Bridge|85 Videos

  • D-BLOCK ELEMENTS

    GRB PUBLICATION|Exercise Subjective Type|18 Videos

  • ENVIRONMENTAL CHEMISTRY

    GRB PUBLICATION|Exercise Straight objective type|40 Videos

Similar Questions

Explore conceptually related problems

Ag^(+)(aq) + e^(-) rightarrow Ag(s) E^(@) = 0.80V Co^(2+)(aq) + 2e(-) rightarrow Co(s) E^(@) = -0.28V Use the standard reduction potentials to determine the standard potential for the reaction: Co(s) + 2Ag^(+)(aq_) rightarrow Co^(2+)(aq) + 2Ag(s)

Use the standard reduction potentials to find the standard cell potential E^(@) , for the reaction: Zn(s)+2Tl^(+)(aq)rarrZn^(2+)(aq)+2Tl(s)

Given these standard reduction potentials, what is the standard reduction potential for Co^(3+)(aq) + 3e^(-) rightarrow Co(s) ? Co^(3+)(aq) + e^(-) rightarrow Co^(2+)(aq) E^(@) = 1.82V Co^(2+)(aq) + 2e^(-) rightarrow Co(s) E^(@) = -0.28V

In the reaction MnO_(4)^(-)+SO_(3)^(-2)+H^(+)rarrSO_(4)^(-2)+Mn^(2+)+H_(2)O

In the reaction C_(2) O_(4)^(-2) + MnO_(4)^(-) + H^(+) rarr Mn^(+2) +CO_(2) the reductants is -

Complete the chemical equations : MnO_4^(-) (aq) + S_2O_3^(2-)(aq) + H_2O (l) to

In the reaction C_(2)O_(4)^(2-)+MnO_(4)^(-)+H^(+) rarr Mn^(2+)+CO_(2)+H_(2)O the reductant is

The standard reduction potential of the reaction H_(2)O+e^(-) rarr 1/2 H_(2) +OH , at 298 K, is

GRB PUBLICATION-ELECTROCHEMISTY-Latimer Diagram, concentration cells
  1. For which half-reaction will a 0.1 unit increase in pH cause the great...

    Text Solution

    |

  2. In a concentration cell, Zn|Zn^(2+) (0.1M) || Zn^(2+) (0.15M) | Zn, as...

    Text Solution

    |

  3. Use the given standard reduction potentials to determine the reduction...

    Text Solution

    |

  4. The standard electrode potential for the reactions, Ag^(+)(aq)+e^(-)...

    Text Solution

    |

  5. The standard electrode potentials, E^(@) of Fe^(3+)//Fe^(2+) and Fe^(2...

    Text Solution

    |

  6. The emf of a cell corresponding to the following reaction is 0.0199 V ...

    Text Solution

    |

  7. Ni(s) + Cu^(2+)(aq) rightarrow Ni^(2+)(aq) + Cu(s) The voltaic cell ...

    Text Solution

    |

  8. For which of these oxidation/reduction pairs will the reduction potent...

    Text Solution

    |

  9. A variable, opposite external potential(E(ext) is applied to the ce...

    Text Solution

    |

  10. For the galvanic cell: Ag(s) | AgBr(aq) | Br^(-)(aq) || Cl^(-)(aq)| ...

    Text Solution

    |

  11. At 298 K, the standard reduction potential are: 1.33 V for Cr(2)O(7)^(...

    Text Solution

    |

  12. Which of the given cells are concentration cells? (P) Pt|H(2)(p(1)ba...

    Text Solution

    |

  13. In given galvanic cell, Pt|H-(2)(g) | NaCl(aq)|| AgNO(3)(aq)| Ag o...

    Text Solution

    |

  14. At 298 K, the standard reduction potentials are 1.51 V for MnO(4)^(-) ...

    Text Solution

    |

  15. Latimer diagram for Cu in an acidic solution is: Cu^(+2) overset(+0....

    Text Solution

    |

  16. The reduction of O(2) to H(2)O in acidic solution has a standard reduc...

    Text Solution

    |

  17. Pt(s), H(2)(g) |HCl(C(1))||HCl(C(2)|H(2),Pt(s) The emf of cell is at...

    Text Solution

    |

  18. Given the two standard reduction potentials below, what is the K(sp) o...

    Text Solution

    |

  19. An increase in pH will promote which of the reactions below? (P) 2Mn...

    Text Solution

    |

  20. Cu^(2+)(aq) + Zn(s) rightarrow Cu(s) + Zn^(2+)(aq), E^(@) = 1.1V Zn^...

    Text Solution

    |