Question

which of these is not a strong acid? hclo₃ hclo₂ hclo₄ hcl

Explanation:

Strong acids are acids that completely dissociate in water. The common strong acids include HCl (hydrochloric acid), HClO₄ (perchloric acid), HClO₃ (chloric acid). HClO₂ (chlorous acid) is a weak acid as it does not dissociate completely in water.

Answer:

B. HClO₂