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Karnataka Board PUCPUC Science 2nd PUC Class 12

Write down the IUPAC name of the following complex and indicate the oxidation state, electronic configuration and coordination number. K[Cr(H2O)2(C2O4)2].3H2O

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Question

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

Chemical Equations/Structures
Short Answer
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Solution

IUPAC name of the hybrid compound Oxidation state of the central metal Coordination number Shape Central metal ion Electronic configuration The value of n and the magnetic moment
Potassium diaquadioxalatochromate(III) hydrate −1 + x + 2 × (0) + 2 × (−2) = 0
∴ x = +3
6 Octahedral Cr3+

3d3, \[\ce{t^3_{2g}e^0_g}\]

 n = 3,
`sqrt(3(3 + 2))`
= 3.87 BM

Stereochemistry:

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Chapter 5: Coordinate Compounds - Exercises [Page 139]

APPEARS IN

NCERT Chemistry Part 1 and 2 [English] Class 12
Chapter 5 Coordinate Compounds
Exercises | Q 5.24 (i) | Page 139
Nootan Chemistry [English] Class 12 ISC
Chapter 5 Coordination Compounds
'NCERT TEXT-BOOK' Exercises | Q 9.24 (i) | Page 560

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