Concept:Methanoic acid is the simplest carboxylic acid, also known as formic acid.
Explanation:Methanoic acid is naturally present in the venom of certain ants.
Its chemical formula is
HCOOH.
When injected through an ant sting, it causes a burning sensation.
To neutralize the acidic effect, a mild base such as baking soda or soap is applied.
In low concentrations, methanoic acid is an effective antibacterial agent and is even used as a food preservative.
However, at high concentrations it becomes toxic.
The most common natural source of methanoic acid is the sting of ants, especially from the Formicidae family.
Answer:C. Ant stings