Question

Which is the weakest ligand?

• A. \( \text{F}^- \)
• B. \text{EDTA}
• C. \text{en}
• D. \text{CO}

Hint:

To identify weak and strong ligands, remember that halide ions like \( \text{F}^- \) are typically weaker, while chelating agents like EDTA and \( \text{CO} \) are among the strongest.