Magnetic Moment Examples
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(I) [Cr(H2O)6]Br2
(II) Na4[Fe(CN)6]
(III) Na3[Fe(C2O4)3](Δ0>P)
(IV) (Et4N)2[CoCl4]
- (III)>(I)>(IV)>(II)
- (III)>(I)>(II)>(IV)
- (II)>(I)>(IV)>(III)
- (I)>(IV)>(III)>(II)
- [Fe(H2O)6]2+
- [Cr(H2O)]3+
- [Cu(H2O)6]2+
- [Zn(H2O)6]2+
- Cr2+
- Ti3+
- Co2+
- Ni2+
Addition of excess aqueous ammonia to a pink coloured aqueous solution of MCl2.H2O(x) and NH4Cl gives an octahedral complex Y in the presence of air. In aqueous solution, complex Y behaves as 1:3 electrolyte. The reaction of X with excess HCl at room temperature results in the formation of a blue coloured complex Z. The calculated spin only magnetic moment of X and Z is 3.87 B.M., whereas it is zero for complex Y.
Among the following options, which statemet(s) is (are) correct?
The hybridization of the central metal ion in Y is d2sp3
Addition of silver nitrate to Y gives only two equivalents of silver chloride
When X and Z are in equilibrium at 0∘, the colour of the solution is pink
Z is a tetrahedral complex
Among the following ions which one has the highest paramagnetism?
- [Cr(H2O)6]3+
- [Fe(H2O)6]2+
- [Cu(H2O)6]2+
- [Zn(H2O)6]2+
Among the following the lowest degree of paramagnetism per mole of the compound at 298 K will be shown by:
MnSO4.4H2O
CuSO4.5H2O
FeSO4.6H2O
NiSO4.6H2O
The pair having the same magnetic moment is :
[At. No.: Cr=24, Mn=25, Fe=26, Co=27]
- [Cr(H2O)6]2+ and [CoCl4]2−
- [Cr(H2O)6]2+ and [Fe(H2O)6]2+
- [Mn(H2O)6]2+ and [Cr(H2O)6]2+
- [CoCl4]2− and [Fe(H2O)6]2+
Spin only magnetic moment of the compound Hg[Co(SCN)4] is
√8
√3
√24
√15
Which of the following is paramagnetic ?
[Ni(CO)4]2−
[Fe(CN)6]4−
[Ni(CO)4]
[CoF6]3−