Home
Class 12
CHEMISTRY
An electrochemical cell has two half cel...

An electrochemical cell has two half cell reaction as, `A^(2+)+2e^-,E^0=0.34V`
`XtoX^(2+)+2e^-,E^0=+2.37V`. The cell voltage will be

A

2.71 V

B

2.03 V

C

`-2.71 V`

D

`-2.03 V`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • REDOX REACTIONS

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION - A|35 Videos

  • REDOX REACTIONS

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION - B|20 Videos

  • REDOX REACTIONS

    AAKASH INSTITUTE|Exercise Assignment (Section J) (Aakash challengers Questions)|11 Videos

  • PRINCIPLES OF QUALITATIVE ANALYSIS

    AAKASH INSTITUTE|Exercise Assignment (SECTION H)|9 Videos

  • SOLUTIONS

    AAKASH INSTITUTE|Exercise ASSIGMENT (SECTION-J) AAKASH CHALLENGERS QUESTIONS|10 Videos

Similar Questions

Explore conceptually related problems

The standard oxidation potential E^@ for the half cell reaction are Zn rarr Zn^2+2e^- E^@=+ 0.76 V Fe rarr Fe^2+ + 2e^- E^@=+ 0.41 V EMF of the cell rection is Zn+Fe^(2+) rarr Zn^(2+)+Fe

The half reactions for a cell are Zn to Zn^(2+) + 2e^(-), E^(@) = 0.76 V Fe to Fe^(2+) + 2e^(-), E^(@) = 0.41 V The DeltaG^(@) (in kJ) for the overall reaction Fe^(2+) + Zn to Zn^(2+) + Fe is

The standard potential E^(@) for the half reactions are as : Zn rarr Zn^(2+) + 2e^(-), E^(@) = 0.76V Cu rarr Cu^(2+) +2e^(-) , E^(@) = -0.34 V The standard cell voltage for the cell reaction is ? Zn +Cu^(2) rarr Zn ^(2+) +Cu

E^@ values for the half cell reactions are given below : Cu^(2+) + e^(-) to Cu^(+) , E^@ =0.15 V Cu^(2+) + 2e^(-) to Cu, E^@ =0.34 V What will be the E^@ of the half-cell : Cu^(+) + e^(-) to Cu ?

The standard oxidation potential E^(@) for the half cell reactions are Zn rarrZn^(2+)+2e^(-):E^(@)=+0.76V FerarrFe^(2+)+2e^(-)"E^(@)=+0.41V EMF of the cell reaction Fe^(2+)+ZnrarrZn^(2+)+Fe will be

AAKASH INSTITUTE-REDOX REACTIONS-EXERCISE
  1. Oxidation state of nitrogen in H-N equiv C is

    Text Solution

    |

  2. Oxidation state of oxygen in CrO(5) is

    Text Solution

    |

  3. The number of peroxide linkages in CrO(5) " and " H(2)SO(5) respective...

    Text Solution

    |

  4. The pair of the compounds in which both the metals are in the highest ...

    Text Solution

    |

  5. Oxidation number of chlorine atoms in CaOCl(2) are

    Text Solution

    |

  6. When ethane is burnt in excess of oxygen,, the oxidation number of car...

    Text Solution

    |

  7. The oxidation state of oxygen in the following reaction changes, K+O(2...

    Text Solution

    |

  8. The number of electrons involved when 1 mole of H(2)O(2) decomposes as...

    Text Solution

    |

  9. Which of the following elements never show positive oxidation number?

    Text Solution

    |

  10. When SO(2) is passed in acidified K(2)Cr(2)O(7) solution oxidation sta...

    Text Solution

    |

  11. In an electrochemical cell, the flow of electrons is from

    Text Solution

    |

  12. In SHE, the pH of the acid solution

    Text Solution

    |

  13. An electrochemical cell has two half cell reaction as, A^(2+)+2e^-,E^0...

    Text Solution

    |

  14. Which of the following is the most reactive metal?

    Text Solution

    |

  15. Which of the following element has maximum standard reduction potentia...

    Text Solution

    |

  16. Choose the correct statement for galvanic cell

    Text Solution

    |

  17. Which of the following involves redox reaction?

    Text Solution

    |

  18. Which of the following is true about salt bridge?

    Text Solution

    |

  19. Standard reduction potential is calculated at

    Text Solution

    |

  20. The electrochemical cell representing the given reaction Ni(s)+Cu^(2...

    Text Solution

    |