Which acid is present in Ant Sting?

Question

Accepted Answer

The correct option is (4):

Ant stings are known to contain methanoic acid, commonly known as formic acid. The name 'formic' is derived from the Latin word 'formica', which means ant. When an ant stings, it injects this acid into the skin, causing irritation, pain, and a burning sensation. Methanoic acid is the simplest carboxylic acid, with the chemical formula $\mathrm{HCOOH}$. Its small size and acidic nature allow it to easily penetrate tissues and trigger a pain response. This acid is also produced synthetically and has various industrial applications, including as a preservative and in the tanning of leather.

The incorrect option is (1): Lactic Acid

Lactic acid ($\mathrm{C_3H_6O_3}$) is primarily associated with muscle fatigue during intense exercise and is also found in sour milk products due to bacterial fermentation. It is not found in ant stings.

The incorrect option is (2): Citric Acid

Citric acid ($\mathrm{C_6H_8O_7}$) is a weak organic acid commonly found in citrus fruits like lemons and oranges, giving them their tart flavor. It is not present in ant stings.

The incorrect option is (3): Tartaric Acid

Tartaric acid ($\mathrm{C_4H_6O_6}$) is a white, crystalline organic acid found naturally in many plants, most notably in grapes, bananas, and tamarinds. It is not the acid found in ant stings.