Question

A boy touches the leaves of a nettle plant, and feels a burning pain. What is the reason?

• A. A layer of sulphuric acid is present on the leaves of nettle plant.
• B. A layer of acidic salts is present on its hair around the nettle leaf.
• C. The stinging hair of the plant injects methanoic acid.
• D. The stinging hair of the plant injects magnesium hydroxide.

Answer 1

The correct option is C The stinging hair of the plant injects methanoic acid.

The burning pain is due to the sting from the stinging hairs of the leaves of the nettle plant which inject methanoic acid on touching.