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Which one among the following is present in the nettle leaf hairs that causes burning pain?

Options

  1. AMethanoic acid
  2. BEthanoic acid
  3. CBenzoic acid
  4. DAcetic acid

Correct answer

A. Methanoic acid

Step-by-step solution

Methanoic acid is the irritant present in nettle leaf hairs responsible for causing a burning sensation upon contact with the skin. When these tiny hairs pierce the skin, they release formic acid, which acts as a mild toxin. This acid stimulates pain receptors, triggering a stinging or burning sensation that can last for varying durations depending on the individual's sensitivity and the extent of contact.

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