allery[Ni(CO)₄], [Fe(CO)₅] and [Cr(CO)₆] are respectively:
ATetrahedral, octahedral, trigonal bipyramidal
BAll octahedral
CTetrahedral, trigonal bipyramidal, octahedral
DSquare planar, tetrahedral, octahedral
Answer & Solution
Correct answer: C. Tetrahedral, trigonal bipyramidal, octahedral
**Tetracarbonylnickel(0)
→ tetrahedral**; **pentacarbonyliron(0)
→ trigonal bipyramidal**
**hexacarbonylchromium(0) → octahedral**.
All homoleptic carbonyls of zero-valent transition metals.
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