Home
Class 11
CHEMISTRY
The magnetic moment of .25Mn in ionic st...

The magnetic moment of `._25Mn` in ionic state is `sqrt(15)B.M`, then Mn is in:

A

1

B

2

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
4
`25^(Mn)-[Ar]3d^(5)4s^(2)`

Given `sqrt(n(n+2))=sqrt(15)rArrn=3`
Hence to have `'3'` unpaired electrons `Mn` must be in `'+4'` state
Promotional Banner

Topper's Solved these Questions

  • AROMATIC COMPOUNDS

    RESONANCE|Exercise PART-II : JEE (MAIN)|1 Videos

  • CHEMICAL BONDING

    RESONANCE|Exercise Inorganic chemistry (Chemistry Bonding)|49 Videos

Similar Questions

Explore conceptually related problems

The spin only magnetic moment of Mn^(4+) ion is nearly

The spin only magnetic moment of Mn^(4+) ion is nearly

The magnetic moment of M^(+) (atomic number = 25 is sqt(15) BM .The number of unpaired electron and the value of x respectivekly are

If hydrogen atoms (in the ground state ) are passed through an homogeneous magnetic field, the beam is split into two parts. This interaction with the magnetic field shows that the atoms must have magnetic moment. However, the moment cannot be due to the orbital angular momentum since l=0. Hence one must assume existence of intrinsic angular momentum, which as the experiment shows, has only two permitted orientations. Spin of the electron produce angular momentum equal to S=sqrt(s(s+1))(h)/(2pi) where S=+(1)/(2) . Total spin of an atom = +(n)/(2) " or "-(n)/(2) where n is the number of unpaired electrons. The substance which contain species with unpaired electrons in their orbitals behave as paramagnetic substances. The paramagnetism is expressed in terms of magnetic moment. The magnetic moment of an atom mu_(s)sqrt(s(s+1))(eh)/(2pimc)=sqrt((n)/(2)((n)/(2)+1))(eh)/(2pimc)" "s=(n)/(2) impliesmu_(s)=sqrt(n(n+1)) B.M. 1. B.M. (Bohr magneton)= (eh)/(4pimc) If magnetic moment is zero the substance is diamagnetic. If an ion of _(25)Mn has a magnetic moment of 3.873 B.M. Then oxidation state of Mn in ion is :

RESONANCE-ATOMIC STRUCTURE-PHYSICAL CHEMISTRY(ATOMIC EQUILIBRIUM)
  1. The magnetic moment of .25Mn in ionic state is sqrt(15)B.M, then Mn is...

    Text Solution

    |

  2. The spin only magnetic of Cr^(3+) in aqueous solution would be :

    Text Solution

    |

  3. psi^(2)=0 represent

    Text Solution

    |

  4. Observer the following statements regarding isotones : a. .^(39)K an...

    Text Solution

    |

  5. If n(1) and n(2) are the boundary value principal quantum numbers of a...

    Text Solution

    |

  6. What is the potential energy of an electron present in N- shell of th...

    Text Solution

    |

  7. In which of the following transition, the wavelength will be minimum ...

    Text Solution

    |

  8. The ratio of kinetic energy and potential energy of an electron in a B...

    Text Solution

    |

  9. Total Number of unpaired electrons in d- orbitals of an atom element o...

    Text Solution

    |

  10. Photons of minimum energy 496k,J. mol^(-1) are needed to an atoms. Cal...

    Text Solution

    |

  11. According to Bohr's model, if the kinetic energy of an electron in 2^(...

    Text Solution

    |

  12. Last line of Lyman series for H- atom has wavelength lambda(1) A,2^(nd...

    Text Solution

    |

  13. Which electronic level would allow the hydrogen atom to absorbs a phot...

    Text Solution

    |

  14. Number of nomal planes ( planes of zero electron densit ) in the d(xy)...

    Text Solution

    |

  15. The uncertainty in position and velocity of the particle are 0.2mm and...

    Text Solution

    |

  16. A particle initially at rest having charge q coulomb, & mass m kg i...

    Text Solution

    |

  17. The number of possible lines of Paschenc series when electron jumps fr...

    Text Solution

    |

  18. AIR service on Vividh Bharati is transmitted on 219m band. What is its...

    Text Solution

    |

  19. Calculate the maximum and minimum number of electrons. Which may have ...

    Text Solution

    |

  20. In the emission spectrum of H- atom from energy level 'n' to ground s...

    Text Solution

    |