Question Detail
Question
Appropriate units for a first-order rate constant are
Correct Answer
Option C is the correct answer.
Detailed Explanation
For first-order reactions, rate = k[A]. Rate has units M/s, [A] has units M, so k has units s⁻¹ (1/s).
Hint
Units of k depend on overall order: first-order = time⁻¹.