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Which of the following pair of transitio...

Which of the following pair of transition metal ions, have the same calculate values of magnetic moment ?

A

`Ti^2+ and V^2+`

B

`Fe^2+ and Cu^2+`

C

`Cr^2+ and Fe^2+`

D

`Co^2+ and Ti^2+`

Text Solution

Verified by Experts

The correct Answer is:
(c
Magnetic moment depend upon number of unpaired electrrons
`Cr^2+ (Z = 24) : [Ar]3d^4`4s^circ , 4 unpaired electrons
`Fe^2+ (Z = 26) : [Ar] 3d^64s^circ` , 4 unpaired electrons .
The number of unpaired electrons in `Cr^2+` and `Fe^2+` are same, hence they have same magnetic moments .
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Knowledge Check

  • Which of the following pair of transition metal ions, have the same calculated values of spin only magnetic moment ?

    A
    `Ti^(+2) & V^(+2)`
    B
    `Fe^(+2) % Co^(+2)`
    C
    `Cr^(+2) & Fe^(+2)`
    D
    `Co^(+2) & Ti^(+2)`

  • Which of the following pair of transition metal ions, have the same calculated values of spin only magnetic moment?

    A
    `Co^(2+)`
    B
    `Cu^(2+)`
    C
    `Mn^(2+)`
    D
    `Sc^(3+)`

  • Which of the following pairs of ions are colourless?

    A
    `Ti^3+` ,`Cu^2+`
    B
    `Se^3+` , `Zn^2+`
    C
    `CO^2+` , `Fe^3+`
    D
    `Ni^2+` , `V^3+`

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    Which one of the following pairs of species have the same bond order?

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