Multiple choice

Which of the following compounds represents hypochlorous acid?

  1. HClO2

  2. HClO

  3. HClO3

  4. HClO4

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Hypochlorous acid is HClO. The 'hypo-' prefix indicates one fewer oxygen than chlorous acid (HClO2). Chloric acid is HClO3 and perchloric acid is HClO4.