Home
Class 12
CHEMISTRY
E^(0) for F2 + 2e^(-) to 2F^(-) is 2.8 V...

`E^(0)` for `F_2 + 2e^(-) to 2F^(-)` is 2.8 V , `E^(0)` for ` 1//2 F_2 + e^(-) to F^(-)` is

A

2.8V

B

1.4V

C

`-2.8V`

D

`-1.4V`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    AAKASH SERIES|Exercise PRACTICE EXERCISE|55 Videos

  • ELECTROCHEMISTRY

    AAKASH SERIES|Exercise Exercise -2 (Electrolytic conductance)|10 Videos

  • DILUTE SOLUTIONS

    AAKASH SERIES|Exercise EXERCISE - 1.2|55 Videos

  • ELEMENTS OF D - BLOCK

    AAKASH SERIES|Exercise EXERCISE - 5.2|33 Videos

Similar Questions

Explore conceptually related problems

E^(@) for Fe^(2+) + 2e to Fe is -0.44 V , E^(@) for Zn^(2+) + 2e to Zn is - 0.76 V . Then

The half cell reaction for the corrosion are , 2H^(+) + (1)/(2) O_2 + 2e^(-) to H_2O , E^(0) = 1.23 V and Fe^(2+) + 2e^(-) to Fe(s) , E^(0) = -0.44 V . Find the DeltaG^(0) ( in kJ) for the overall reaction

Among the reactions, F_(2(g)) + 2e^(-) to 2F_((g))^(-) and Cl_(2(g)) + 2e^(-) to 2Cl_((g))^(-) which is more feasible ? Give the reason.

The standard potential (E^(0)) for the half reaction are as Zn to Zn^(2+) + 2e^(-) , E^(0) = + 0.76 V Fe to Fe^(2+) + 2e^(-) , E^(0) = + 0.41 V . The emf for the cell reaction Fe^(2+) + Zn to Zn^(2+) + Fe is

Tollen's reagent is used for the detection of aldehyde when a solution of AgNO_3 is added to gluose with NH_4OH then gluconic acid is formed Ag^(+) + e^(-) to ag, E_(1)^(@) = 0.8 V , C_6H_(12)O_6 + H_2O to "Gluconic acid " (C_6 H_(12)O_7) + 2H^(+) + 2e^(-) , E_(2)^(@) = -0.05 V , [Ag(NH_3)_2]^(+) e^(-) to Ag(s) + 2NH_3 , [Use , 2.303 xx (RT)/(F) = 0.0592 and (F)/(RT) = 38.92 "at " 298 K ] Ammonia is always added in this reaction . Which of the following must be incorrect ?

Process (A) : F_(2(g)) + 2e^(-) rarr 2F^(-)_((g)) , Process (B) : Cl_(2(g)) +2e^(-) rarr 2Cl_(g)^(-) which of these process is easy ? Why ?

If the value of equilibrium constant (K_f) for the operation Zn_((aq))^(2+) + 4OH_((aq))^(-) iff Zn(OH)_(4(aq))^(2-) is 10^(10x) , then x is (Given : Zn_((aq))^(2+) + 2e^(-) to Zn_((s)) , E^(@)=-0.76 V , Zn(OH)_(4(aq))^(2-) + 2e^(-) to Zn_((s)) + 4OH_((aq))^(-) , E^(@) = - 1.36 V , 2.303 (RT)/(F) = 0.06 )

E.M.F of the cell reaction , 2Ag^(+) + Cu to 2Ag + Cu^(2+) is 0.46 V . If E_(Cu^(2+) // Cu)^(0) is | 0.34 V , E_(Ag^(+)//Ag)^(0) is

AAKASH SERIES-ELECTROCHEMISTRY -Exercise -2 (Nernst equation and EMF)
  1. EMF of a cell in terms of reduction potential of its left and right el...

    Text Solution

    |

  2. E^(0) for the half cell Zn^(2+) // Zn is - 0.76 V . Emf of the cell ...

    Text Solution

    |

  3. If the standard electrode protential of Cu^(2+)// Cu electrode is 0.34...

    Text Solution

    |

  4. The potential of hydrogen electrode is -118 mV . The H^(+) concentrati...

    Text Solution

    |

  5. The standard potential (E^(0)) for the half reaction are as Zn to Zn^...

    Text Solution

    |

  6. E^(0) for F2 + 2e^(-) to 2F^(-) is 2.8 V , E^(0) for 1//2 F2 + e^(-) ...

    Text Solution

    |

  7. Consider the following E^(0) values E(Fe^(3+) // Fe^(2+))^(0) = + 0.77...

    Text Solution

    |

  8. E^(0) for the reaction Fe + Zn^(2+) to Zn + Fe^(2+) is -0.35 V . The ...

    Text Solution

    |

  9. E.M.F of the cell reaction , 2Ag^(+) + Cu to 2Ag + Cu^(2+) is 0.46 V ...

    Text Solution

    |

  10. The EMF of the cell Ni//Ni^(2+)(0.01)// // Cl^(-)(0.01M)//Cl(2), pt i...

    Text Solution

    |

  11. The standard electrode potential of the htwo half cells are given bel...

    Text Solution

    |

  12. Aluminium displaces hydrogen from dilute HCl whereas silver does not. ...

    Text Solution

    |

  13. A cell constructed by coupling a standard copper electrode and a stand...

    Text Solution

    |

  14. The solution of nickel sulphate in which nickel rod is dipped is dilut...

    Text Solution

    |

  15. The standard reduction potentials for the two half-cell reactions are ...

    Text Solution

    |

  16. Normal aluminium electrode coupled with normal hydrogen electrode give...

    Text Solution

    |

  17. The standard EMF for the cell reaction , Zn + Cu^(2+) to Cu + Zn^(2+) ...

    Text Solution

    |

  18. At a certain temperature and at infinite dilution, the equivalent cond...

    Text Solution

    |

  19. The emf of the following three galvanic cells are respresented by E(1)...

    Text Solution

    |