Chemistry - Coordination Chemistry Question with Solution | TestHub
Statement I : In Zeise's salt the C-C bond length is longer as compared to C-C bond length in .
Statement II : Strong π donor π acceptor ligand ethylene present in Zeise salt.
Options:
Answer:
Solution:
Statement I is true. In Zeise's salt, the C-C bond length in ethylene is elongated due to back-bonding from the platinum metal to the antibonding orbital of ethylene, weakening the C-C bond.
Statement II is true. Ethylene acts as a strong -acceptor ligand in Zeise's salt. It donates electron density from its orbital to the metal and accepts electron density into its antibonding orbital from the metal (back-bonding).
Statement II correctly explains Statement I. The back-bonding from Pt to the orbital of ethylene weakens the C-C bond, leading to its elongation.
The final answer is A
