Home
Class 12
CHEMISTRY
E^(@) value of Co^(2+), Co, Al^(3+) , Al...

`E^(@)` value of `Co^(2+), Co, Al^(3+) , Al , Ag^(+), Ag and Ba^(2+), Ba` are respectively `0.28, -1.66, +0.8 and -2.9 V`. write the increasing order of the reduction ability of metals and discuss .

Text Solution

Verified by Experts

The correct Answer is:
`Ag lt Co lt Al lt Ba`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    AAKASH SERIES|Exercise Subjective Exercise -3 ( Very Short Answer Questions)|3 Videos

  • ELECTROCHEMISTRY

    AAKASH SERIES|Exercise Subjective Exercise -4 (Long Answer Questions)|3 Videos

  • ELECTROCHEMISTRY

    AAKASH SERIES|Exercise Subjective Exercise -3 (Long Answer Questions)|2 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^(0) values for Cl_(2), Cl^(-), I_(2)^(-), Ag^(+), Ag, Na^(+), Na, Li^(+), Li are respectively + 1.36. + 0.53, + 0.79, - 2.71 and - 3.04V . Correct decreasing order of reducing strength of I^(-), Ag, Na and Li is

E_0 values of Zn^(2+), Zn , Mg^(2+), Mg and Cu^(2+), Cu are -0.76 V, -2.36 and 0.34 V respectively. (a) Which metal can be extracted even from its aqueous solutions by electrolysis ? (b) Which metal acts as best reductant ? Write reactions .

Standard reduction electrode potential of three metals A, B and C are respectively +0.05 V, -3.0 and -1.2 V. The reducing powers of

If 0 le theta le pr, cos 6theta + cos 4theta + cos 2theta + 1 =0 then the ascending order of the values of theta is

Ag^(+) + e^(-) rarr Ag, E^(0) = + 0.8 V and Zn^(2+) + 2e^(-) rarr Zn, E^(0) = -076 V . Calculate the cell potential for the reaction, 2Ag + Zn^(2+) rarr Zn + 2Ag^(+)

The standard reduction potentials of Zn^(2+)//Zn,Cu^(2+)//Cu and Ag^(+)//Ag are respectively -0.78, 0.34 and 0.8 V. The following cells were constructed: (1) Zn |Zn^(2+)|| Cu^(2+)|Cu (2) Zn |Zn^(2+)|| Ag^(+)|Ag (3) Cu |Cu^(2+)|| Ag^(+)|Ag What is the correct order of of these cells?

AAKASH SERIES-ELECTROCHEMISTRY -Subjective Exercise -3 (Short Answer Questions)
  1. How are the cells systemically represented ? Given examples.

    Text Solution

    |

  2. E^@ values of Zn^(2+), Zn and Cu^(2+), Cu are respectively -0.76 V a...

    Text Solution

    |

  3. The potential of the cell Cu, Cu^(2+) (0.1M)"//"HCl (xM), Cl(2), Ptis...

    Text Solution

    |

  4. E^@ for Mg to 2e^(-) + Mg^(2+) is + 2.37 V and for Cu to 2e^(-) + Cu ...

    Text Solution

    |

  5. E^(@) value of Co^(2+), Co, Al^(3+) , Al , Ag^(+), Ag and Ba^(2+), Ba ...

    Text Solution

    |

  6. Two students use of the same stock solutions of zinc sulphate and a so...

    Text Solution

    |

  7. Calculate the Electrode potential of single electrode. Cu^(2+)(0.01M)...

    Text Solution

    |

  8. Standard reduction potential of I(3)^(-), I^(-) and Fe^(3+), Fe^(2+) ...

    Text Solution

    |

  9. Calculate single electrode potential of Pt, Cl(2)//Cl^(-) (0.01)(E^(@...

    Text Solution

    |

  10. Calculate the EMF of Zn//Zn^(2+)(0.1)"//"Cu^(2+)(0.1)//Cu E^(@) of Zn^...

    Text Solution

    |

  11. Calculate the EMF of cell Ni//Ni^(2+) (0.01M)"//"Cl^(-)0.1M//Cl(2), ...

    Text Solution

    |

  12. Calculate the EMF of the cell formd from Ag & Ni electrodes E^(@).Ag^...

    Text Solution

    |

  13. Write the cell reactions of the cell fored from Sn^(2+)//Sn, Pb^(2+...

    Text Solution

    |

  14. Calculate electrode potential of Zn^(2+)(0.1M)//Zn"||"Cl^(-)(0.01)/...

    Text Solution

    |

  15. Calculate the EMF of the cell Cu//Cu^(2+)(0.1M)"//"Cl^(-) (0.01)// ...

    Text Solution

    |

  16. What is nernst equation. Calculate the EMF of the galvanic cell constr...

    Text Solution

    |

  17. Electrode potentials of Cu^(2+)//Cu and Ag^(+)//Ag electrodes are + ...

    Text Solution

    |

  18. E^(@)Zn^(2+)//Zn = -0.77V. What is the 'E' value of the electrode cont...

    Text Solution

    |

  19. Write the cell reactions for a) Ni//Ni^(2+)// //Cu^(2+)//Cu b) Cu...

    Text Solution

    |

  20. Calculate E of the cell with Cu^(2+) (0.1)//Cu electrode and Cl^...

    Text Solution

    |