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Increasing value of spin only magnetic m...

Increasing value of spin only magnetic moments of :-
(I) `[Fe(CN)_(6)]​^( 4–)`
` (II) [Fe(CN)_6]^(​ –3)`
` (III) [Cr(NH_(3))_(6)]​ ^(3+)`
` (IV) [Ni(H_(2)O)_(4)]​^( 2+ )`

A

I lt II lt III lt IV

B

IV lt III lt II lt I

C

II lt III lt I lt IV

D

I lt II lt IV lt III

Text Solution

Verified by Experts

The correct Answer is:
D
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Calculate the magnetic moments of the following complexes: (i) [Fe(CN)_(6)]^(-4) (ii) [FeF_(6)]^(-3)

Arrange the following in increasing value of magnetic moments. (i) [Fe(Cn)_6]^(4-) (ii) [Fe(CN)_6]^(3-) (iii) [Cr(NH_3)_6]^(3+) (iv) [Ni(H_2O)_4]^(2+)

Knowledge Check

  • The spin magnetic moment of iron in K_(3)[Fe(CN)_(6)]

    A
    `sqrt(3)BM`
    B
    `sqrt(5)BM`
    C
    `sqrt(15)BM`
    D
    `sqrt(24)BM`

  • Transition metals and many of their compounds show paramagnetic behaviour where there are unpaired electron or electrons. The magnetic moment arises from the spin and orbital motions in ions or molecule. Magnetic moment of n unpaired electrons is given as mu=sqrt(n(n+2)) Bohr magneton Magnetic moment increases as the number of unpaired electrons increases. Q. Increasing value of magnetic moment of (I) [Fe(CN)_6]^(4-) (II) [Fe(CN)_6]^(3-) , (III) [Cr(NH_3)_6]^(3+) (IV) [Ni(H_2O)_4]^(2+) is:

    A
    `IltIIltIIIltIV`
    B
    `IVltIIIltIIltI`
    C
    `IIltIIIltIltIV`
    D
    `IltIIltIVltIII`

  • Arrange the following in increasing value of magnetic moments. (i) [Fe(CN)_6]^(4-) , (ii) [Fe(CN)_6]^(3-) , (iii) - [Cr(NH_3)_6]^(3+) , (iv)-[Ni(H_2O)_4]^(2+)

    A
    (i) lt (ii) lt (iii) lt (iv)
    B
    (i) lt (ii) lt (iv) lt (iii)
    C
    (ii) lt (iii) lt (i) lt (iv)
    D
    (iii) lt (i) lt (ii) lt (iv)

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    The magnetic moment of complex given below are in the order: (I) [Ni(CO)_(4)] (II) [Mn(CN)_(6)]^(4-) (III) [Cr(NH_(3))_(6)]^(3+) (IV) [CoF_(6)]^(3-)

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