Name the acid present in nettle sting.
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A.
Oxalic acid
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B.
Acetic acid
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C.
Citric acid
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D.
Methanoic acid
Correct Answer:
D. Methanoic acid
Explanation:
The correct answer is methanoic acid. Nettle stings are caused by tiny, hollow hairs called trichomes that inject a cocktail of chemicals into the skin. While histamine and other neurotransmitters contribute to the immediate reaction, the stinging sensation is traditionally attributed to the presence of methanoic acid, which is also commonly known as formic acid. Although other organic acids like oxalic and tartaric acid may also be present and contribute to the lasting pain, methanoic acid is the primary chemical identified in most educational and scientific contexts as the acid found in nettle stings.
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