Home
Class 12
CHEMISTRY
The emf of cell is 1.3 Volt. The positiv...

The emf of cell is 1.3 Volt. The positive electrode has potential of 0.5 volt. The potential of negative electrode is

A

0.8 V

B

`-0.8V`

C

`1.8 V`

D

`-1.8 V`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    MARVEL PUBLICATION|Exercise Previous years Entrance Exams MCQ|55 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

Standard electrode potential of an electrode is :

A current of two amperes is flowing through a cell of e.m.f. 5 volts and internal resistance 0.5 ohm from negative to positive electrode. If the potential of negative electrode is 10 V , the potential of positive electrode will be

The potential associated with each electrode is known as electrode potential. If the concentration of each species taking part in the electrode reaction is unity (if any appears in the electrode reaction, it is confined to 1 atmospheric pressure) and further the reaction is carried out at 298 K, then the potential of each electrode is said to the standard electrode potential. By convention, the standard electrode potential of hydrogen electrode is 0.0 volt. The electrode potential value for each electrode process is a measure of relative tendency of the active species in the process to remain in the oxidised/reduced form. A negative E^(@) means that the redox couple is a stronger reducing agent than the H^(+)//H_(2) couple. A positive E^(@) means that the redox couple is a weaker reducing agent than the H^(+)//H_(2) couple. The metal with greater positive value of standard reduction potential forms the oxide of greater thermal stability. Which of the following couples will have highest value of emf ?

MARVEL PUBLICATION-ELECTROCHEMISTRY-Test your Grasp
  1. 0.1 ampere current is passed for 10 seconds through Cu and Ag. The met...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  7. During rusting of iron it gets

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  16. In Nernst equation the constant 0.0591 at 298K represents the value of

    Text Solution

    |

  17. When an electric current is passed through acidified water, 112ml of H...

    Text Solution

    |

  18. When 96500 coulomb of electricity is passed through a copper sulphate ...

    Text Solution

    |

  19. The standard reduction potentials of metals A and B are x and y respec...

    Text Solution

    |

  20. A solution of electrolyte in water, when electrolysed , liberated H(2)...

    Text Solution

    |