Nettle is a herbaceous plant which grows in the wild. Its leaves have stinging hair, which cause painful stings when touched accidentally. This is due to the methanoic acid secreted by them. A traditional remedy is rubbing the area with the leaf of the dock plant, which often grows beside the nettle in the wild.
1. Nettle secrets which acid?
(i) Hydrochloric acid
(ii) Nitric acid
(iii) Methanoic acid
(iv) Ethanoic acid
2. Which plant grows besides nettle?
(i) Hibiscus
(ii) Dock
(iii) Neem
(iv) Basil
3. True or false. Stinging hair of nettle leaves inject methanoic acid causing burning pain.
(i) TRUE
(ii) FALSE
4. Use of a mild base like baking soda on the stung area gives relief. In this statement true?
(i) YES
(ii) NO
5. What is the nature of dock plant?
(i) Acidic
(ii) Basic
(iii) Neutral
(iv) None of these
