Question

What is a coordination compound?

• A. A metal atom or ion bonded by covalent bonds to ligands.
• B. Any atom bonded by ionic bonds to other atoms.
• C. Any atom bonded by covalent bonds to other atoms.
• D. A compound with covalent bonds.
• E. A metal atom bonded by ionic bonds to ligands.

Answer 1

The correct option is A A metal atom or ion bonded by covalent bonds to ligands.

A coordination compound is a metal atom or ion bonded by covalent bonds to ligands. For example, tetra carbonyl nickel $Ni(CO{)}_4$ is a coordination compound with the metal atom ($Ni$ atom) which forms covalent bonds with $4$ $CO$ ligands.