Question

check the box before each formula that represents a ligand that is likely to form a complex with a transition metal. if there are none, please check the box below the table. ☐ h⁺ ☐ c₂h₆ ☐ oh⁻ ☐ ch₃⁺ ☐ none of the above

Explanation:

Step1: Recall Ligand Properties

Ligands are molecules/ions with lone pairs to donate (Lewis bases) to form coordinate bonds with transition metals.

Step2: Analyze Each Species

• \( \text{H}^+ \): Positive ion, no lone pairs to donate (Lewis acid), not a ligand.
• \( \text{C}_2\text{H}_6 \) (ethane): Neutral, all valence electrons in bonds, no lone pairs available for donation, not a ligand.
• \( \text{OH}^- \): Hydroxide ion has lone pairs on O, can donate to form a coordinate bond (e.g., in complexes like \( \text{[Cu(OH)}_4\text{]}^{2-} \)), so it is a ligand.
• \( \text{CH}_3^+ \): Positive ion, lacks lone pairs (electron-deficient), not a ligand.

Step3: Determine the Correct Box

Only \( \text{OH}^- \) qualifies as a ligand. So check the box before \( \text{OH}^- \).

Answer:

The box before \( \boldsymbol{\text{OH}^-} \) should be checked.