For which octahedral configuration would the spin only magnetic moment be about 3.87 BM ?
A
(in weak as well as strong fields)
B
(low-spin) C
(low-spin)
D
(low-spin)
Text Solution
Verified by ExpertsThe correct answer is:
A
Spin-only magnetic moment
, where
number of unpaired electrons.
(since 
).
An octahedral 
complex has configuration 
with three unpaired electrons in both weak- and strong-field cases, matching 
.
(For comparison: low-spin 
(2 unpaired), low-spin 
(1 unpaired), low-spin 
(1 unpaired).)
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