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KCET · Chemistry · Coordination Compounds

\( \mathrm{CO} \) is a stronger ligand than \( \mathrm{Cl}^{-} \), because

  1. A \( \mathrm{CO} \) is a neutral molecule.
  2. B CO has \( \pi \)-bonds.
  3. C \( \mathrm{CO} \) is poisonous.
  4. D \( \mathrm{CO} \) is more reactive.
Verified Solution

Answer & Solution

Correct Answer

(B) CO has \( \pi \)-bonds.

Step-by-step Solution

Detailed explanation

\( \mathrm{CO} \) is a stronger ligand than \( \mathrm{Cl}^{-} \)because, \( \mathrm{CO} \) is a \( \mathrm{II} \) - acceptor ligand due to multiple bonds in \( \mathrm{CO} \) and vacant
antibonding orbital of \( \mathrm{C} \) atom in \( \mathrm{CO} \).