Which one of the following acids is secreted by leaves of Nettle that causes painful stings?
[amp_mcq option1=”Methanoic acid” option2=”Citric acid” option3=”Tartaric acid” option4=”Acetic acid” correct=”option1″]
This question was previously asked in
UPSC CDS-2 – 2021
The stinging sensation caused by Nettle leaves (Urtica dioica) is primarily due to the injection of chemicals from specialized hairs (trichomes). One of the main chemicals responsible is formic acid, which is also known by its IUPAC name, methanoic acid (HCOOH).
Methanoic acid (formic acid) is a simple carboxylic acid found in natural sources like ant stings and nettle stings, causing irritation and pain.