Which acid present in ant stings causes pain, swelling, and a burning sensation on human skin?

💡 Solution & Explanation

Methanoic acid, universally recognized as formic acid, is injected by ants during stings, triggering localized inflammation, pain, and itching on human skin. Other acids like acetic acid constitute the primary component of vinegar rather than insect venoms. Neutralizing such stings typically requires weak alkaline substances like baking soda.