Home
Class 12
CHEMISTRY
The correct order of E(M^(2+)//M)^(@) Va...

The correct order of `E_(M^(2+)//M)^(@)` Values with negative sign for the four successive elements `Cr, Mn, Fe` and `Co` is:

A

`Mn gt Cr gt Fe gt Co`

B

`Cr gt Fe gt Mn gt Co`

C

`Fe gt Mn gt Cr gt Co`

D

`Cr gt Mn gt Fe gt Co`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    P BAHADUR|Exercise (A) ELECTROLYSIS|2 Videos
  • ELECTROCHEMISTRY

    P BAHADUR|Exercise (B) ELECTRODE POTENTIAL AND EMF|1 Videos
  • DILUTE SOLUTION AND COLLIGATIVE PROPERTIES

    P BAHADUR|Exercise Exercise 9 Advanced Numerical|12 Videos
  • MOCK TEST PAPER

    P BAHADUR|Exercise Exercise|92 Videos

Similar Questions

Explore conceptually related problems

The correct order of E_(M^(+2)//M)^(@) value with negative sign for the four successive element Mn,Fe, Co and Ni

Which of the following represents the correct order of increasing electron gain enthalpy with negative sign for the elements O, S, F and Cl?

{:(E_(M^(2+)//M)^(@),Cr,Mn, Fe, Co, Ni, Cu),(,-0.91,-1.18,-0.44,-0.28,-0.25,+0.34):} From the given data of E^(@) values, answer the following questions : (i) Why is E_((Cu^(2+)//Cu))^(@) value exceptionally positive ? (ii) Why is E_((M^(2+)//M))^(@) vlue highly negative as compared to other elements ? (iii) Which is a stronger reducing agent , Cr^(2+) or Fe^(2+) ? Give reason.

Discuss the relative stability in aqueous solution of +2 oxidation states among the elements: Cr, Mn, Fe and Co

Give the decreasing order of E_((M^(3+))/(M^(2+))^(c-) Value for the following: (a). Co(Z=27) (b). Mn(Z=25) (c). Fe(Z=26) (d). Cr(Z=24)

Correct order of paramagnetism of tripositive cation of Cr, Mn, Fe, Co is :

P BAHADUR-ELECTROCHEMISTRY-Exercise (9) ADVANCED NUMERICAL PROBLEMS
  1. The correct order of E(M^(2+)//M)^(@) Values with negative sign for th...

    Text Solution

    |

  2. A current of 0.5 A is passed through acidulated water for 30 minute. C...

    Text Solution

    |

  3. A copper cell containing 5% solution of CuSO(4).5H(2)O and a silver ce...

    Text Solution

    |

  4. Some quantity of electricity being used to liberate iodine (at anode) ...

    Text Solution

    |

  5. A test for complete romovel of Cu^(2+) ions form a solution of Cu((aq....

    Text Solution

    |

  6. A Zn rod weighing 25g was kept in 100 mL of 1M CuSO(4) solution. After...

    Text Solution

    |

  7. Assume that impure copper contains only Fe, Au and Ag as impurities. A...

    Text Solution

    |

  8. 50 mL of 0.1 M CuSO(4) solution is electrolysed using Pt electrodes wi...

    Text Solution

    |

  9. An oxide of metal ("at. wt. "= 112) contain 12.5% O(2) by weight. The ...

    Text Solution

    |

  10. 19g fused SnCl(2) was electrolysed using inert electrodes. 0.119g Sn w...

    Text Solution

    |

  11. A lead storage cell is discharged which causes the H(2)SO(4) electroly...

    Text Solution

    |

  12. Two litre solution of a buffer mixture containing 1.0 M NaH(2)PO(4) an...

    Text Solution

    |

  13. A current of 40 microampere is passed through a solution of AgNO(3) fo...

    Text Solution

    |

  14. Suppose a fully charged battery containes 1.50 litre of 5.0 M H(2)SO(4...

    Text Solution

    |

  15. In an analytical determination of aresenic , a solution containing are...

    Text Solution

    |

  16. Assuming that a constant current is delivered, how many kW-h of electr...

    Text Solution

    |

  17. Find the e.m.f. of the following cell at 18^(@)C taking the degree of ...

    Text Solution

    |

  18. If it is disreed to construct the following voltaic cell to have E(cel...

    Text Solution

    |

  19. The e.m.f. of the obtained by combining Zn and Cu electrodes of Danie...

    Text Solution

    |

  20. Calcualte the potential of an indicator electrode versus the standard ...

    Text Solution

    |

  21. An electrode is prepared by dipping a silver strip into a solution sat...

    Text Solution

    |