Home
Class 12
CHEMISTRY
The cell potential of the galvanic cell ...

The cell potential of the galvanic cell
`Zn|Zn^(++)|Ag^(+)|Ag` ,
`E^(@)(Zn^(++)|Zn)=-0.76 V, E^(@)(Ag^(+)|Ag)=+0.80 V`

A

`+ve`

B

`-ve`

C

zero

D

can't say

Text Solution

Verified by Experts

The correct Answer is:
A
`E_(cell)^(0)=underset(Ag)E_("cathode")^(0)-underset(Zn)E_("anode")^(0)=1.56 V`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    MARVEL PUBLICATION|Exercise Previous years Entrance Exams MCQ|55 Videos

  • ELECTROCHEMISTRY

    MARVEL PUBLICATION|Exercise Test your Grasp|50 Videos

  • D AND F BLOCK ELEMENTS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|60 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    MARVEL PUBLICATION|Exercise Test Your Grasp|30 Videos

Similar Questions

Explore conceptually related problems

The emf of the cell, Zn|Zn^(2+)|Ag^(+)|Ag is independent of

For the cell : Zn (s) |Zn^(2+)(a M)||Ag^(o+)(bM)|Ag(s) . a. Write Nernst equation to show how E_(cell) vary with concentration of Zn^(2+) and Ag^(o+) ions. Given E^(c-)._((Zn^(2+)|Zn))=0.76V,E^(-)._((Ag^(o+)|Ag))=0.80V. b. Find E_(cell) for [Zn^(2+)]=0.01M and [Ag^(c-)]=0.02M . c. For what values of Q will the cell EMF be i. 0.0V" "ii. 0.97 V

E^(c-)._(red) of different half cell are given as : E^(c-)._(Cu^(2+)|Cu)=0.34V,E^(c-)._(Zn^(2+)|Zn)=-0.76V . E^(c-)._(Ag^(o+)|Ag)=0.80 V, E^(c-)._(Mg^(2+)|Mg)=-2.37V. In which cell DeltaG^(c-) is most negative ?

Find E_(cell)^(@) for the cell : Zn | Zn^(2+)(1M) || Ag^(+)(1M) | Ag [Given that : E_(Zn//Zn^(2+))^(@)=0.76" V" , E_(Ag^(+)//Ag)^(@)=0.80" V" .

Consider the following cell reaction Zn +2Ag^(o+)rarr Zn ^(2+)+2Ag. Given that E^(c-)._(Zn^(2+)(aq)Zn(s))=-0.76V E^(c-)._(Ag^(o+)(aq)Ag(s))=0.80V a. Calculate the standard EMF fo the cell. b. Which ion is more powerful oxidizing agent ? c. Which metal is more powerful reducing agent ?

MARVEL PUBLICATION-ELECTROCHEMISTRY-Test your Grasp
  1. The cell potential of the galvanic cell Zn|Zn^(++)|Ag^(+)|Ag , E^(...

    Text Solution

    |

  2. An electric current is passed through an aqueous solution of the follo...

    Text Solution

    |

  3. Electrolysis involves oxidation and reduction respectively at .

    Text Solution

    |

  4. The metal which can not displace hydrogen from dil. H(2)SO(4) solution...

    Text Solution

    |

  5. The amount of electricity required to deposit one gram atom of Mg from...

    Text Solution

    |

  6. During electrolysis electrons flow from

    Text Solution

    |

  7. In a solution of CuSO(4) how much time will be required to preciitate ...

    Text Solution

    |

  8. 0.1 ampere current is passed for 10 seconds through Cu and Ag. The met...

    Text Solution

    |

  9. How many electrons are there in one coulomb of electricity?

    Text Solution

    |

  10. The emf of cell is 1.3 Volt. The positive electrode has potential of 0...

    Text Solution

    |

  11. How many Faradays are required to liberate one mole of O(2) gas at N.T...

    Text Solution

    |

  12. A silver cup is plated with silver by passing 965 coulombs of electric...

    Text Solution

    |

  13. A, B,C and D are four elements with E(oxd)^(0) as +2.82V, +2.71V, +1.6...

    Text Solution

    |

  14. During rusting of iron it gets

    Text Solution

    |

  15. The electrode potential of a silver electrode dipped in 0.1 M AgNO(3) ...

    Text Solution

    |

  16. A certain current liberated 0.504 g of hydrogen in 2 hours. How many g...

    Text Solution

    |

  17. The rusting of iron is catalysed by which of the following ?

    Text Solution

    |

  18. In a cell containing zinc electrode and hydrogen electrode,If the redu...

    Text Solution

    |

  19. E^(@) of Mg^(2+) || Mg, Zn^(2+) || Zn, and Fe^(2+)||Fe are -2.37V, -0....

    Text Solution

    |

  20. The reaction M^(2)+2e^(-) to M has standard potential of -0.66V . This...

    Text Solution

    |

  21. Rgw atomic weight of Al is 27. When a current of 5F is passed through ...

    Text Solution

    |