Which complex is paramagnetic?
AHas UNPAIRED electrons in d-orbitals
BOnly octahedral
CStrong-field complexes always
DDiamagnetic ones with all paired electrons
Answer & Solution
Correct answer: A. Has UNPAIRED electrons in d-orbitals
Paramagnetic = has unpaired electrons (attracted to magnetic field). For d-block complexes, depends on electron configuration in t2g/eg orbitals. High-spin complexes have more unpaired e⁻ than low-spin.
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