Chemistry-Properties of d-block
NEET Chemistry Properties of d-block MCQ Question
Type: MCQ-numerical-Hard-Class 12
Calculate the number of unpaired electrons in a transition metal ion that exhibits a magnetic moment of 4.9 BM using the spin-only formula.
A
4 unpaired electrons
B
5 unpaired electrons
C
3 unpaired electrons
D
6 unpaired electrons
Correct Answer
Option A
Detailed Explanation
Using the spin-only formula, μ = √(n(n+2)), where μ is 4.9 BM, solving for n gives n(n+2) = 24.01, resulting in approximately 4 unpaired electrons.
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