Home
Class 12
CHEMISTRY
Aluminium displaces hydrogen from dilute...

Aluminium displaces hydrogen from dilute HCl whereas silver does not. The e.m.f. of a cell prepared by combining `Al//Al^(3+)` and `Ag//Ag^(+)` is 2.46 V. The reduction potential of silver electrode is + 0.80 V. The reduction potential of aluminium electrode is

A

`+1.66` V

B

`-3.26` V

C

`+3.26` V

D

`-1.66` V

Text Solution

Verified by Experts

The correct Answer is:
D
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

Aluminium displaces hydrogen from acids, but copper does not. A galvanic cell prepared by combining Cu//Cu^(2+) and Al//Al^(3+) has an emf of 2.0 V at 298K. If the potential of copper electrode is +0.34V, that of Aluminium electrode is

At 25^(@)C , the reduction potential of hydrogen electrode is -0.118 V at 1 atm. What is he pH of acid solution used for the construction of the electrode ?

The emf of the involving the reaction 2Ag_((aq))^(+)+H_(2(g)) rarr Ag_((s))+2H_((aq))^(+) is 0.80V . The standard oxidation potential of silver electrode is

Normal aluminium electrode coupled with normal hydrogen electrode gives an emf of 1.66V. So the standard electrode potential of aluminium is

E_(Ag^(+),Ag)^(0) = 0.8 V . Calculate the single electrode potential in 0.01 M Ag^(+)

E.m.f. of the cell Zn|Zn^(2+)(1)||Cu^(2+)(1M)|Cu is 1.1 volt. If the standard reduction potential of Zn^(2+)|Zn is -0.78 volt, what is the oxidation potential of Cu|Cu^(2+) ?

E^@Cu^(2+)//Cu is + 0.34V At which one of the following concentrations of Cu^(2+) , reduction potential of copper electrode becomes zero

A cell constructed by coupling a standard copper electrode and a standard magnesium electrode has emf of 2.7 volts. If the standard reduction potential of copper electrode is +0.34 volt, that of magnesium electrode 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

    |