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Karnataka Board PUCPUC Science 2nd PUC Class 12

Using valence bond theory, explain the following in relation to the complexes given below: [Cr(HX2O)X6]X3+ (i) Type of hybridisation. (ii) Inner or outer orbital complex. (iii) Magnetic behaviour

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Question

Using valence bond theory, explain the following in relation to the complexes given below:

\[\ce{[Cr(H2O)6]^{3+}}\]

(i) Type of hybridisation.
(ii) Inner or outer orbital complex.
(iii) Magnetic behaviour.
(iv) Spin only magnetic moment value.

Long Answer
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Solution

\[\ce{[Cr(H2O)6]^{3+}}\]:

(i) Hybridisation – d2sp3

(ii) Inner orbital complex

(iii) Paramagnetic

(iv) Magnetic moment = `sqrt(3(3 + 2))` = 3.87 B.M

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Chapter 9: Coordination Compounds - Exercises [Page 127]

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NCERT Exemplar Chemistry Exemplar [English] Class 12
Chapter 9 Coordination Compounds
Exercises | Q VI. 47. | Page 127

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