Question

Which acid is found in ant sting?

• A. Citric acid
• B. Acetic acid
• C. Methanoic acid
• D. None of these

Hint:

The common name for methanoic acid is formic acid, derived from the Latin word for ant, "formica". Knowing this etymology can help you remember the answer.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
The question asks to identify the specific acid present in the sting of an ant, which causes irritation and pain.

Step 2: Detailed Explanation:
\[\begin{array}{rl} \bullet & \text{Methanoic acid (\(HCOOH\)): This is the systematic IUPAC name for the simplest carboxylic acid. Its common name is formic acid. It is injected by ants and stinging nettles and is responsible for the burning sensation. } \\ \bullet & \text{Citric acid: A weak organic acid found naturally in citrus fruits like lemons and oranges. } \\ \bullet & \text{Acetic acid (\(CH_3COOH\)): The main component of vinegar. } \\ \end{array}\] The acid found in an ant's sting is methanoic acid (formic acid).

Step 3: Final Answer:
Methanoic acid is found in ant stings.