MDCAT Chemistry MCQ #5384

Orthoboric acid (H3BO3) appears to have three hydrogen atoms, yet its acidity contrasts with typical triprotic acids because:

MDCAT Chemistry MCQ #5384

  1. Question 1

    Q1. Orthoboric acid (H3BO3) appears to have three hydrogen atoms, yet its acidity contrasts with typical triprotic acids because:

    • A) It is a strong tribasic acid
    • B) It donates three protons in aqueous solution
    • C) It is a strong Brönsted acid
    • D) It is a weak monobasic Lewis acid

    Answer: It is a weak monobasic Lewis acid

    Explanation: Orthoboric acid is a weak monobasic acid that acts as a Lewis acid by accepting an OH- ion from water.