The pKb values of four solutions are given below. Which one is the most acidic?

Correct answer: C. 5

  • A. 3
  • B. 4
  • C. 5
  • D. 2

Explanation

A higher pKb value indicates a weaker base. A weaker base corresponds to a stronger conjugate acid and thus a more acidic solution. Therefore, the solution with the highest pKb (5) will be the most acidic.

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