Home
Class 12
CHEMISTRY
Consider the following E^(@) values E(...

Consider the following `E^(@)` values
`E_(Fe)^(@).^(3+)._(//Fe^(2+))=+0.77V,E_(Sn^(2+)._(Sn))^(@)=-0.14V` Under standard conditions, the potential for the reaction
`Sn(s)+2Fe^(3+)(aq)rarr2Fe^(2+)(aq)+Sn^(2+)(aq)` is

A

`1.68V`

B

`0.63V`

C

`0.91V`

D

`1.40V`

Text Solution

Verified by Experts

The correct Answer is:
C
`E_("cell")^(@)=E_(Fe^(3+)//Fe^(3+))-E_(Sn^(2+) //Sn)^(@)`
`=0.77-(-0.14)=0.91V`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    DINESH PUBLICATION|Exercise SELECTED STRAIGHT OBJECTIVE|67 Videos

  • ELECTROCHEMISTRY

    DINESH PUBLICATION|Exercise MATCH-MATRIX|7 Videos

  • ELECTROCHEMISTRY

    DINESH PUBLICATION|Exercise ADDITIONAL NUMERICAL PROBLEMS FOR PRACTICE|12 Videos

  • D-AND -F BLOCK ELEMENTS

    DINESH PUBLICATION|Exercise BRAIN STORMING MULTIPLE CHOICE QUESTIONS (MCQS)|13 Videos

  • ETHERS

    DINESH PUBLICATION|Exercise (MCQs)|8 Videos

Similar Questions

Explore conceptually related problems

Consider the following E^(@) values E^(@) values E_(Fe^(3+)//Fe^(2+))^(@)= 0.77v , E_(Sn^(2+)//Sn)^(@) = -0.14 under standard condition the potential for the reaction Sn_(s)+ 2Fe^(3+)(aq)rightarrow 2Fe^(2+)(aq) + Sn^(2+) (aq) is :

Consider the following E^(@) values E^(o)""_(Fe^(3+)//Fe^(2+))= +0.77 V" "E^(o)""_(Sn^(2+)//Sn)= 0.14V Under standard conditions the EMF for the reaction Sn(s) + 2Fe^(3+) (aq) rarr 2Fe^(2+)(aq)+Sn^(2+)(aq) is :

Consider the following E^o values : E^o _Fe^(3+)//FE^(2+)o = + 0.77 V E_(Sn^(2+)//Sn) =- 0.14 V Under standard conditions the potential for reaction Sn(s) +2Fe^(3+) (aq) rarr 2Fe^(2+) (sq) + Sn^(2+) (aq) is.

Consider the following E^(@) values. E^(@)underset(M^(3+)//M^(2-)) values for Cr, Mn, Fe and Co are -0.41 Under standard condition, the potential for the reaction : Sn(s) + 2Fe^(3+)(aq) rightarrow2Fe^(2+)(aq) + Sn^(2+)(aq)

Consider the following E_(0) values, E_(Fe^(3+)//F^(2+))^(0)=+0.77V, E_(Sn^(2+)//Sn)^(0)=-0.14V , the E_(cell)^(0) for the reaction, Sn_((s))+2Fe_((aq.))^(3+)rarr2F_((aq.))^(2+)+Sn_((aq.))^(2+) is:

Consider the following E^@ values . E_(Fe^(3+)//Fe^(2+)^@ = + 0.77 V , E_(Sn^(2+)//Sn)^@=- 15. V The E_(cell)^@ for the reaction , Sn (s) + 2Fe_(aq)^(3+) rarr 2 Fe_(aq.)^(2+) + Sn_(aq.)^(2+) is :

E_(Fe^(3+)//Fe)^(@)=-0.036V,E_(Fe^(2+)//Fe)^(@)=-0.0439V . The value of standard electrode potential for the change, Fe^(3+)(aq)+e^(-)toFe^(2+)(aq) will be

DINESH PUBLICATION-ELECTROCHEMISTRY-REVISION QUESTIONS FROM COMPETITIVE EXAMS
  1. E^(@)Cu=0.34V,E(Zn)^(@)=-0.76V. A Daniell cell contains 0.1M ZnSO(4) s...

    Text Solution

    |

  2. In a hydrogen-oxygen fuel cell, combustion of hydrogen occurs to :

    Text Solution

    |

  3. Consider the following E^(@) values E(Fe)^(@).^(3+).(//Fe^(2+))=+0.7...

    Text Solution

    |

  4. The standard e.m.f. of a cell involving one electron charge is found ...

    Text Solution

    |

  5. The limmiting molar conductivites ^^ ^(@) for NaCl(2) Kbr and KCl are...

    Text Solution

    |

  6. In a cell that utilizes the reactions. Zn(s) + 2H^(+) (aq) rightarro...

    Text Solution

    |

  7. The E(M ^(3+//M^(2+)))^(@) values for Cr, Mn, Fe and Co are -0.41,+1....

    Text Solution

    |

  8. What is the quantity of electricity (in columbs) required to deposit a...

    Text Solution

    |

  9. 4.5 g of aluminium (at mass 27 u) is deposited at cathode from Al^(3+)...

    Text Solution

    |

  10. Aluminium oxide may be electrolysed at 1000^(@)C to furnish aluminium ...

    Text Solution

    |

  11. The highest electrical conductivity of the following aqueous solutions...

    Text Solution

    |

  12. Calculate ^^overset(oo)HOAc using appropriate molar conductances of th...

    Text Solution

    |

  13. How many coulombs are required for the reduction of 1 mol of MnO(4)^(-...

    Text Solution

    |

  14. The chemical reaction 2AgCl("(fused)")+H(2(g))rarr2HCl((aq))+2Ag((s)...

    Text Solution

    |

  15. The conductivity of 0.001 M acetic acid is 5xx10^(-5)S cm^(-1) and ^^^...

    Text Solution

    |

  16. The electrical resistance of a column of 0.04M NaOH solution of diamet...

    Text Solution

    |

  17. In electrolysis of dilute H(2)SO(4) what is liberated at anode?

    Text Solution

    |

  18. When an electric cell is charged then

    Text Solution

    |

  19. The half cell reaction for rusting of iron are: 2H^(+)+2e^(-)+(1)/(2...

    Text Solution

    |

  20. For a spontaneous reaction, DeltaG, equilibrium constant (K) and E(cel...

    Text Solution

    |