Multiple choice

When ants bite, they inject

  1. stearic acid

  2. formic acid

  3. methanol

  4. glacial acetic acid
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ants inject formic acid (methanoic acid) when they bite or sting. Formic acid is responsible for the burning sensation and irritation. The name 'formic acid' actually comes from the Latin word 'formica' meaning ant. Stearic acid is a fatty acid, methanol is an alcohol, and glacial acetic acid is concentrated acetic acid.

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