Home
Class 12
CHEMISTRY
The d-electron configurations of Cr^(2+)...

The d-electron configurations of `Cr^(2+), Mn^(2+), Fe^(2+)` and `Co^(2+)` are `d^4, d^5, d^6` and `d^7` respectively. Which one of the following will exhibit minimum paramagnetic behavious?

A

`[Cr(H_(2)O)_(6)]^(2+)`

B

`[Mn(H_(2)O)_(6)]^(2+)`

C

`[Fe(H_(2)O)_(6)]^(+2)`

D

`[Co(H_(2)O)_(6)]^(2+)`

Text Solution

Verified by Experts

The correct Answer is:
D
`Co^(2+) to 3d^(7), 4s^(0)`
: having minimum no. of unpaired electrons.
Promotional Banner

Topper's Solved these Questions

  • CO-ORDINATE COMPOUNDS

    NARAYNA|Exercise Exercise-4|60 Videos

  • CO-ORDINATE COMPOUNDS

    NARAYNA|Exercise Exercise -2 (H.W.)|20 Videos

  • CHEMISTRY OF HEAVY METALS

    NARAYNA|Exercise Passage 13|1 Videos

  • COORDINATION COMPLEXES

    NARAYNA|Exercise Compreshession type question|12 Videos

Similar Questions

Explore conceptually related problems

The d-electronic configuration of Cr^(2+), Mn^(2+), Fe^(2+) and Ni^(2+) are, 3^(4), 3d^(5), 3d^(6) and 3d^(8) respectively. Which of the following aqua complexes will exhibit the minimum paramagnetic behavior?

The d electron congfiguration of Cr^(2+) , Mn^(2+) , Fe^(2+) and Ni^(2+) are 3d^(4) , 3d^(5) , 3d^(6) and 3d^(8) respectively. Which one of the folowing aqua complexes will exhibit the minimum paramagnetic behaviour ? (At. No . Cr = 24, Mn = 25, Fe = 26, Ni = 28)

The d electron configuration of Cr^(2+) , Mn^(2+) , Fe^(2+) and Ni^(2+) aru 3d^(4) , 3d^(5) 3d^(6) and 3d^(8) respectively. Which one of the following aqua complexes will exhibit the maximum paramagnetic behaviour? (At. No. Cr= 24, Mn=25, Fe = 26, Ni = 28)

The d- electron configurations of Mn^(2+),Fe^(2+),Co^(3+) and Ni^(2+) ard 3d^(5),3d^(6),3d^(6),3d^(8) , respectively Which of the following aqua complexes will exhibit the minimum paramagnetic behviour ? .

Which one of the following ions exhibits d-d transition and paramagnetism as well ?

NARAYNA-CO-ORDINATE COMPOUNDS -Exercise-3
  1. Choose the correct statement

    Text Solution

    |

  2. In the complex ion [CoNH(3))(6)]^(3+) , the NH(3) molecules are li...

    Text Solution

    |

  3. The d-electron configurations of Cr^(2+), Mn^(2+), Fe^(2+) and Co^(2+)...

    Text Solution

    |

  4. Of the following complex ions, which is diamagnetic in natures?

    Text Solution

    |

  5. The comlexes [Co(NH3)6] [Cr(CN)6] and [Cr(NH3)6] [Co(CN)6] are the exa...

    Text Solution

    |

  6. The complex, [Pt(py)(NH3)BrCl] will have how many geometrical isomers?

    Text Solution

    |

  7. From four transition metal octahedral complexes , (the choice g...

    Text Solution

    |

  8. Which one of the following is an outer orbital complex and exhibits pa...

    Text Solution

    |

  9. A magnetic moment of 1.73 B.M. will be shown by one among the followin...

    Text Solution

    |

  10. Among the following complexes, the one which shows zero crystal field ...

    Text Solution

    |

  11. The name of complex ion, [Fe(CN(6))]^(3-) is

    Text Solution

    |

  12. The hybridization involved in complex [Ni(CN)(4)]^(2-) is (At. No . Ni...

    Text Solution

    |

  13. The sum of coordination number and oxidation number of the metal M in ...

    Text Solution

    |

  14. Number of possible isomer for the complex [Co(en)(2)CI(2)]CI will be: ...

    Text Solution

    |

  15. Cobalt (III) chloride forms several octahedral complexes with amonia. ...

    Text Solution

    |

  16. Which of the following has longest [CO(CN)(6)]^(3-) bond length?

    Text Solution

    |

  17. Which of the following has longest C-O bond length? (Free C-O bond len...

    Text Solution

    |

  18. The correct increasing order of trans-effect of the following species ...

    Text Solution

    |

  19. Jahn - Teller effect is not observed in high spin complexes of

    Text Solution

    |

  20. AIF(3) is soluble in HF only in presence of KF. It is due to the forma...

    Text Solution

    |