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Which one of the following alternatives contains molecules and ions that are all likely to form a complex ion with a transition metal cation? A - VCE - SSCE Chemistry - Question 5 - 2007 - Paper 1
Question 5
Which one of the following alternatives contains molecules and ions that are all likely to form a complex ion with a transition metal cation? A. Cl<sup>-</sup>, F<s... show full transcript
Worked Solution & Example Answer:Which one of the following alternatives contains molecules and ions that are all likely to form a complex ion with a transition metal cation? A - VCE - SSCE Chemistry - Question 5 - 2007 - Paper 1
Step 1
B. NH<sub>3</sub>, Cl<sup>-</sup>, F<sup>-</sup>, H<sub>2</sub>O
Answer
To determine which option contains molecules and ions likely to form a complex ion with a transition metal cation, we analyze the provided alternatives:
- NH<sub>3</sub>: Ammonia is a well-known ligand that can coordinate with transition metals, forming stable complex ions.
- Cl<sup>-</sup> and F<sup>-</sup>: Both chloride and fluoride ions can act as ligands; however, chloride is a stronger ligand compared to fluoride due to its larger size and better ability to stabilize positive charges.
- H<sub>2</sub>O: Water can also act as a ligand, forming complexes with transition metals (e.g., in aqua complexes).
Given that all four species in option B are capable of coordinating with transition metal cations, making it the right choice.