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Which of the following is paramagnetic ?...

Which of the following is paramagnetic ?

A

`V(CO)_6`

B

`Fe(CO)_5`

C

`Fe_2(CO)_9`

D

`Cr(CO)_6`

Text Solution

Verified by Experts

The correct Answer is:
A
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Knowledge Check

  • Which of the following are paramagnetic

    A
    `[NiCl_(4)]^(2-)`
    B
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    C
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    D
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  • The substances which contain species with unpaired electrons in their orbitals behave as paramagnetic substances. Such substances are weakly attracted by the magnetic field. The paramagnetism is expressed in terms of magnetic moment. The magnetic moment is related to the number of unpaired electrons according to the following relation : Magnetic moment, mu = sqrt(n(n+2)) B.M. Where .n. = number of unpaired electrons. B.M. stands for Bohr magneton, a unit of magnetic moment. Which of the following is diamagnetic ?

    A
    `He^(+2)`
    B
    `Sc^(+2)`
    C
    `Mg^(+2)`
    D
    `O^(-2)`

  • Which of the following substace is paramag­netic ?

    A
    `na_(2)o`
    B
    `na_(2)o_(2)`
    C
    `ko_(2)`
    D
    `k_(2)o_(2)`

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