Question

Among the given ligands, the negative ligand is

• A. Ammonia
• B. Methylamine
• C. Hydrazinium
• D. Nitrate

Hint:

Count the charge on each ligand, and pick the one carrying a negative charge.

Answer 1

The Correct Option is D

Step 1: List the charges.
$\text{NH}_3$: 0. $\text{CH}_3\text{NH}_2$: 0. $\text{N}_2\text{H}_5^+$: +1. $\text{NO}_3^-$: $-1$.

Step 2: Choose.
The only anion is nitrate, so it is the negative ligand.

Final Answer:
Option (D). \[ \boxed{\text{NO}_3^-} \]