Answer: Two NH2 donor atoms.
- A Two NH2 donor atoms
- B One NH2 group
- C A carboxyl group
- D A carbon-carbon double bond
Correct answer: A. Two NH2 donor atoms
Explanation: Ethylenediamine (H2N-CH2-CH2-NH2) has two amine N donors that can both coordinate to the same metal.
The three common coordination geometries: octahedral (6 ligands), tetrahedral (4 ligands), and square planar (4 ligands in one plane).
Concept context
Study of compounds where a central metal atom is bonded to surrounding ligands. Covers nomenclature, types of isomerism, bonding theories (VBT, CFT), and applications in medicine, photography, and industry.