Home
Class 12
CHEMISTRY
A cell with two electrodes, one of grey...

A cell with two electrodes, one of grey tin and the other white tin, both dipping in solution of `(NH_4)_2 SNCI_6` showed zero emf at `18^@C. What conclusion may be draw from this "

A

The emf developed at the electrode -solution phase boundary cancels the normal emf

B

Grey tin being non-medallic ceases ti orivude a reversible electrode reaction

C

Electrode surface develops a ortective layer and the cell develops a very large internal resistance

D

The free energy chango of the cell becomes zero

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • COORDINATION COMPOUNDS

    MBD PUBLICATION|Exercise QUESTION BANK|914 Videos

  • ENVIRONMENTAL CHEMISTRY

    MBD PUBLICATION|Exercise QUESTION BANK|299 Videos

Similar Questions

Explore conceptually related problems

PtCl_(4)andNH_(3) may form five complexes, A (PtCl_(4)*6NH_(3)),B(PtCl_(4)*5NH_(3)),C(PtCl_(4)*4NH_(3)),D(PtCl_(4)*3NH_(3))andE(PtCl_(4)*2NH_(3)) . One mole of each A, B, C, D and E reacts with excess of AgNO_(3) to yield 4, 3, 2 and 1 mole(s) of AgCl respectively, while E gives, no AgCl. The conductance of their solutions are in the order AgtBgtCgtDgtE . On the basis of Werner's theory, write their strucutre and give the total number of ions given by one complex.

MBD PUBLICATION-ELECTROCHEMISTRY-QUESTION BANK
  1. The cell reaction ,Zn + Cu^(2+)rarrZn^(2+) +Cu is best represented by ...

    Text Solution

    |

  2. Mobility of H^+(in aq medium) is high because:

    Text Solution

    |

  3. A cell with two electrodes, one of grey tin and the other white tin, ...

    Text Solution

    |

  4. An ion is reduced to element when it absorbs 6xx 10 ^20 electrons. The...

    Text Solution

    |

  5. How many electrons are there in one coulomb:

    Text Solution

    |

  6. The number of electrons passing per second through a cross-section of ...

    Text Solution

    |

  7. The reduction electrode potential E of 0.1 M solution of M^+ ions (E...

    Text Solution

    |

  8. For reducing 1 mole of Fe^(2+) ions to Fe , the number of Faradays of ...

    Text Solution

    |

  9. A silver cup is plated with silver by passing 965 coulomb of electrici...

    Text Solution

    |

  10. The same amount of electricity was passed through two cells containing...

    Text Solution

    |

  11. What is the charge in Coulombs on Cu^(2+) ion?

    Text Solution

    |

  12. The number of electrons required to deposit 1 g atom of Al(at. Wt.=27)...

    Text Solution

    |

  13. The number of coulombs required for the deposition of107.87 g of silve...

    Text Solution

    |

  14. Reaction taking place at anode in dry cell is :

    Text Solution

    |

  15. Hydrogen cannot reduce :

    Text Solution

    |

  16. Which metal does not give the following reaction : M + water or s...

    Text Solution

    |

  17. Which metal is most readily corroded in moist air:

    Text Solution

    |

  18. Which one will liberate Br2 from KBr.

    Text Solution

    |

  19. Which is not true for a standard hydrogen electrode :

    Text Solution

    |

  20. The value of equilibrium constant fro a feasible cell reaction is :

    Text Solution

    |