Home
Class 12
CHEMISTRY
There are 3 unpaired electrons in [Co(H(...

There are 3 unpaired electrons in `[Co(H_(2)O)_(6)]^(2+)` and calculated value of magnetic moment on the basis of `sqrt(n(n+2))` is `3.87 BM`, which is much lower than the experimental value of `4.4 BM`. The reason for this difference is due to :

A

Increase in the number of unpaired electrons during determination

B

Some contribution of orbital angular momentum of electron towards the magnetic moment

C

`d-d^(*)` transition

D

Experimental error

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • D BLOCK & TRANSITION ELEMENTS

    NARAYNA|Exercise Level-VI (H.W)|49 Videos

  • D BLOCK & TRANSITION ELEMENTS

    NARAYNA|Exercise Level-II (H.W)|11 Videos

  • D - BLOCK ELEMENTS

    NARAYNA|Exercise CHECK YOUR GRASP|7 Videos

  • ELECTRO CHEMISTRY

    NARAYNA|Exercise EXERCISE - IV|44 Videos
NARAYNA-D BLOCK & TRANSITION ELEMENTS-Level-V (H.W)
  1. There are 3 unpaired electrons in [Co(H(2)O)(6)]^(2+) and calculated v...

    Text Solution

    |

  2. Metallic radii of some transitions element are given below. Which of t...

    Text Solution

    |

  3. Which of the following is amphoteric oxide? Mn(2)O(7),CrO(3),Cr(2)O(...

    Text Solution

    |

  4. The magnetic moment is associated with its spin angular momentum and o...

    Text Solution

    |

  5. Ionisation energies of Ni and Pt in KJmol^(-1) are given below {:(,u...

    Text Solution

    |

  6. Atoms of the transition element are smaller than those of the s-block ...

    Text Solution

    |

  7. Standard reduction electrode potential of Zn^(2+)//Zn is -0.76V. This ...

    Text Solution

    |

  8. E^(Theta) value for the couple Cr^(3+)//Cr^(2+) and Mn^(3+)//Mn^(2+) a...

    Text Solution

    |

  9. Of the ions Zn^(2+),Ni^(2+) and Cr^(3+) (atomic number Zn=30,Ni=28,Cr=...

    Text Solution

    |

  10. Iron is rendered passive by treatment with concentrated

    Text Solution

    |

  11. Which of the following dissolves in hot concentrated NaOH solution?

    Text Solution

    |

  12. Among the following, identify the species with an atom in +6 oxidation...

    Text Solution

    |

  13. The pair of compounds having metals in their highest oxidation state i...

    Text Solution

    |

  14. Which of the following pair of compounds is expected to exhibit same c...

    Text Solution

    |

  15. Among the following the coloured compound is .

    Text Solution

    |

  16. The colour of KMnO(4) is due to

    Text Solution

    |

  17. Which of the following statement are correct about Cr^(2+) (Z = 24) an...

    Text Solution

    |

  18. Aqurated copper (I) catin undergoes disproportionation as 2Cu^(+)(a...

    Text Solution

    |

  19. In solution, the stability of the d-block compounds depends upon elect...

    Text Solution

    |

  20. Which of the following is the best oxidant?

    Text Solution

    |