Question Detail
Question
Which of the following is an example of a polyatomic cation?
Correct Answer
Option D is the correct answer.
Detailed Explanation
NH4+ (ammonium) is a polyatomic cation because it consists of multiple atoms (one nitrogen and four hydrogen) and carries a net positive charge. The other options are polyatomic anions (negatively charged).
Hint
Identify the ion with a positive charge that is composed of more than one atom.