Home
Class 12
CHEMISTRY
A solution of nickel sulphate in which n...

A solution of nickel sulphate in which nickel rod is dpped is dilute 10 times. The reduction potential of Ni at 298K

A

Decreases by 60 mV

B

Decreases by 30 mV

C

Decreases by 30 V

D

Increases by 30 mV

Text Solution

Verified by Experts

The correct Answer is:
Increases by 30 V
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    MODERN PUBLICATION|Exercise EXERCISE|529 Videos

  • d-AND f- BLOCK ELEMENTS

    MODERN PUBLICATION|Exercise EXERCISE|1089 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    MODERN PUBLICATION|Exercise EXERCISE|303 Videos

Similar Questions

Explore conceptually related problems

Calculate the electrode potential at copper electrode dipped in a 0.1 M solution of copper sulphate at 298K, assuming CuSO_4 to be completely ionised. The standard electrode potential of Cu^(2+)|Cu is 0.34V at 298K.

The equilibrium constant of the following redox reaction is 298K is 1xx10^8 2Fe^(3+)(aq)+2I^-(aq)Leftrightarrow2Fe^(2+)(aq)+I_2(s) If the standard reduction potential of iodine becoming iodide is +0.54V, what is the standard reduction potential of Fe^(3+)/Fe^(2+) ?

By how much will the potential of a zinc electrode change if the solution of ZnSO_4 in which it is immersed is dilute to 10 times at 298K?

Zinc rod is dipped in 0.1 M solution of ZnSO4. The salt is 95% dissociated at this dilution at 298 K. Calculate the electrode potential. [Given EZn2+/Zn = +(-0.76 V]

Calculate the electrode potential of a silver electrode dipped in a 0.1 M solution of silver nitrate at 298K assuming AgNO_3 to be completely dissociated. The standard electrode potential of Ag^+|Ag is 0.80V at 298K.

A dilute solution of KCl was placed between two Pt electrodes 10cm apart across which a potential difference of 10 volt was applied. Which is /are correct statement (Given: molar conductivity of K^(+) at infinite dilution is 96.5 Scm^2mol^(-1) a) "Ionic mobility of " K^(+) " is " 10^(-3)cm^(2)sec^(-1)"volt"^(-1) b) "The speed of" K^(+) is 10^(-3)cmsec^(-1) c) "Distance traveled by" K^(+) in 5xx10^3 sec is 5cm d) "The potential gradient is 1.0 volt" cm^(-1)

STATEMENT-1: If SOP of substance is less than -1.23 V and over voltage=0V, then its oxidation in its aqueous solution is not possible at 298 K. , STATEMENT-2: Standard reduction potential (SRP) of water is +1.23V.

Find the frequency of light which ejects electrons from a metal surface, fully stopped by a retarding potential of 3 V. The photoelectric effect brings in this metal at a frequency of 6 xx 10^14 Hz . Find the work function for this metal (Given h=6.63 xx 10^-34 Js) /

MODERN PUBLICATION-ELECTROCHEMISTRY-EXERCISE
  1. Zinc can be coatd on iron to produce galvanized iron but the reverse i...

    Text Solution

    |

  2. The equilibrium constant of the following redox reaction is 298K is 1x...

    Text Solution

    |

  3. A solution of nickel sulphate in which nickel rod is dpped is dilute 1...

    Text Solution

    |

  4. When molten magnesium oxide was electrolysed for a certain period, 150...

    Text Solution

    |

  5. The standard reduction potentials for two reactions are given below: A...

    Text Solution

    |

  6. Resistance of a conductivity cell filled with a solution of an electro...

    Text Solution

    |

  7. The cell Zn|Zn^(2+)(1M)||Cu^(2+)(1M)|Cu (E(cell)^@=1.10V) was allowed ...

    Text Solution

    |

  8. Write NERNST equation also Calculate the cell e.m.f. and DeltaG for th...

    Text Solution

    |

  9. Given E(Fe^(3+)|Fe)^@=-0.36V, E(Fe^(2+)|Fe)^@=-0.439V. The value of st...

    Text Solution

    |

  10. The Gibbs energy for the decomposition of Al2O3 at 500^@C is as follow...

    Text Solution

    |

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

    Text Solution

    |

  12. Resistance of 0.2 M solution of an electrolyte is 50 Omega. The specif...

    Text Solution

    |

  13. The standard reduction potentials for Zn^(2+)|Zn, Ni^(2+)|Ni and Fe^(2...

    Text Solution

    |

  14. Given E(Cr^(3+)|Cr)^@=-0.74V,E(MnO4^-|Mn^(2+))^@=1.51V and E(Cr2O7^-/C...

    Text Solution

    |

  15. Consider the following standard electrode potentials and calculate the...

    Text Solution

    |

  16. The equilvalnet conductances of NaCl at concentration C and at inifnit...

    Text Solution

    |

  17. Resistance of 0.2 M solution of an electrolyte is 50 Omega. The specif...

    Text Solution

    |

  18. Two faraday of electricity is passed through a solution of CuSO 4 ​ ...

    Text Solution

    |

  19. Galvanisation is applying a coating of

    Text Solution

    |

  20. An alloy Pb-Ag weighing 1.08g was dissolved in dilute HNO3 and the vol...

    Text Solution

    |