Question

Given below are two statements: 
Statement I: A homoleptic octahedral complex, formed using monodentate ligands, will not show stereoisomerism 
Statement II: cis- and trans-platin are heteroleptic complexes of Pd. 
In the light of the above statements, choose the correct answer from the options given below

• A. Both Statement I and Statement II are false
• B. Statement I is true but Statement II is false
• C. Statement I is false but Statement II is true
• D. Both Statement I and Statement II are true

Hint:

- Homoleptic complexes have only one type of ligand - Geometrical isomerism requires different spatial arrangements - Cis/trans-platin are classic examples of geometrical (not optical) isomerism - Platinum (Pt) complexes \(\neq\) Palladium (Pd) complexes

Answer 1

The Correct Option is B

Each statement will be assessed for its accuracy.

• Statement I: A homoleptic octahedral complex, synthesized with monodentate ligands, exhibits no stereoisomerism.
  Explanation: A homoleptic complex comprises identical ligands. For octahedral complexes with monodentate ligands, the central metal ion is surrounded by uniform ligands, precluding any spatial differentiation and thus the formation of stereoisomers. Consequently, Statement I is accurate.
• Statement II: cis- and trans-platin are heteroleptic complexes of Pd. 
  Explanation: Cisplatin and Transplatin are established complexes of Platinum (Pt), not Palladium (Pd). These complexes feature both chloride ions (Cl) and ammonia molecules (NH₃) as ligands, classifying them as heteroleptic due to the presence of dissimilar ligand types. However, the central metal is Platinum (Pt), not Palladium (Pd). Therefore, Statement II is inaccurate.

Conclusion: Following the provided explanations, the correct determination is: Statement I is accurate while Statement II is inaccurate.