MCQ
$\left[ Co \left( C _{2} O _{4}\right)_{3}\right]^{3-}$ is a :
- ✓Low spin complex
- BParamagnetic
- CHigh spin
- D$sp ^{3} d ^{2}$ hybridized
✓
Answer
Correct option: A.
Low spin complex
a
In coordination complex $\left[ Co \left( C _{2} O _{4}\right)_{3}\right]^{3-}, Co ^{3+}$ acts as a central metal ion.
In coordination complex $\left[ Co \left( C _{2} O _{4}\right)_{3}\right]^{3-}, Co ^{3+}$ acts as a central metal ion.
$Co ^{3+}$ shows $d ^{2} sp ^{3}$ hybridization hence all the electrons are paired and diamagnetic in nature. Thus, it is a low spin complex.
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