Question

Which type of chemical is injected into the skin of a person during the nettle hair-sting?

Answer 1

1. Methanoic acid($\mathrm{HCOOH}$) is injected into the person's skin affected by nettle leaf-hair sting.
2. The effect of these stings can be neutralized when a base like baking soda (${\mathrm{NaHCO}}_3$) is applied to them.
3. It neutralizes the effect of the sting by neutralizing methanoic acid.