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Karnataka Board PUCPUC Science 2nd PUC Class 12

Amongst the following ions, which one has the highest magnetic moment value? - Chemistry

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Question

Amongst the following ions, which one has the highest magnetic moment value?

Options

  • [Cr(H2O)6]3+

  • [Fe(H2O)6]2+

  • [Zn(H2O)6]2+

MCQ
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Solution

[Fe(H2O)6]2+

Explanation:

[Fe(H2O)6]2+ has the highest magnetic moment because Cr3+ has 3 unpaired electrons, whereas Fe2+ has four unpaired electrons and Zn2+ has 0 unpaired electrons.

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Chapter 5: Coordinate Compounds - Exercises [Page 140]

APPEARS IN

NCERT Chemistry Part 1 and 2 [English] Class 12
Chapter 5 Coordinate Compounds
Exercises | Q 5.29 | Page 140
Nootan Chemistry Part 1 and 2 [English] Class 12 ISC
Chapter 9 Coordination Compounds
'NCERT TEXT-BOOK' Exercises | Q 9.29 | Page 560

RELATED QUESTIONS

For the complex [Fe(CN)6]3–, write the hybridization type, magnetic character and spin nature of the complex. (At. number : Fe = 26).


Write the hybridization and shape of the following complexe : [CoF6]3–

(Atomic number : Co = 27, Ni = 28)


Write the hybridization and shape of the following complexe : [Ni(CN)4]2–

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Write down the IUPAC name of the following complex and indicate the oxidation state, electronic configuration and coordination number. Also, give the stereochemistry and magnetic moment of the complex:

K[Cr(H2O)2(C2O4)2].3H2O


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(At. no. of Co = 27)


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Write the hybridization and magnetic character of the following complexes:
[Fe(H2O)6]2+
(Atomic no. of Fe = 26)


Which of the following options are correct for \[\ce{[Fe(CN)6]^{3-}}\] complex?

(i) d2sp3 hybridisation

(ii) sp3d2 hybridisation

(iii) paramagnetic

(iv) diamagnetic


Explain why \[\ce{[Fe(H2O)6]^{3+}}\] has magnetic moment value of 5.92 BM whereas \[\ce{[Fe(CN)6]^{3-}}\] – has a value of only 1.74 BM.


Why do compounds having similar geometry have different magnetic moment?


Assertion: \[\ce{[Fe(CN)6]^{3-}}\] ion shows magnetic moment corresponding to two unpaired electrons.

Reason: Because it has d2sp3 type hybridisation.


[Ti(H2O6]3+ T is paramagnetic is nature due to


Explain [Fe(CN)6]3− is an inner orbital complex, whereas [FeF6]3− is an outer orbital complex.

[Atomic number: Fe = 26]


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