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CGP EDU Academic Team
Published on: August 12, 2026
The correct statement(s) regarding the binary transition metal carbonyl compounds is (are) (Atomic numbers: Fe = 26, Ni = 28)
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(b,c) ⇒ Fe(CO) 5 : Total number of valence electrons is 18
: low spin complex.
⇒ Ni(CO) 4 : Total number of valence electrons is 18
: low spin complex
⇒ Metal-carbonyl bond strengthens when the oxidation state of metal is lowered.
⇒ The carbonyl C–O bond is stronger in case of increased oxidation state of metal.
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