Chemistry-Crystal Field Theory
NEET Chemistry Crystal Field Theory MCQ Question
Type: MCQ-numerical-Easy-Class 12
The spin-only magnetic moment of a coordination compound is calculated to be 5.9 BM. If the complex ion is [MnBr4]2–, how many unpaired electrons are present in this complex?
A
5
B
4
C
3
D
2
Correct Answer
Option A
Detailed Explanation
The magnetic moment of 5.9 BM indicates the presence of 5 unpaired electrons in the d orbitals of the Mn2+ ion, which suggests a tetrahedral geometry as square planar complexes typically have fewer unpaired electrons.
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