MDCAT Chemistry MCQ #5378

Comparing the oxyacids of Chlorine, Perchloric acid (HClO4) is a much stronger acid than Chloric acid (HClO3) because:

MDCAT Chemistry MCQ #5378

  1. Question 1

    Q1. Comparing the oxyacids of Chlorine, Perchloric acid (HClO4) is a much stronger acid than Chloric acid (HClO3) because:

    • A) HClO3 has more oxygen atoms than HClO4
    • B) Chlorine has a lower oxidation state in HClO4
    • C) HClO3 is a stronger oxidizing agent than HClO4
    • D) HClO4 has a higher number of oxygen atoms which stabilizes the anion

    Answer: HClO4 has a higher number of oxygen atoms which stabilizes the anion

    Explanation: Perchloric acid is stronger because the higher number of oxygen atoms increases the oxidation state and polarizes the O-H bond.