The irritation caused by red ant's bite is due to
Correct answer: B. Formic acid
- A. Lactic acid
- B. Formic acid
- C. Uric acid
- D. Strong acids
Explanation
The primary culprit behind the painful sting of a red ant bite is formic acid (HCOOH). This colorless, pungent acid is secreted by most ant species, including red ants, and serves as a defensive weapon against predators. When an ant bites, it injects a small amount of formic acid into the victim's skin. This acid readily dissociates in water, releasing hydrogen ions (H⁺) which:Activate pain receptors: The H⁺ ions stimulate pain receptors in the skin, causing the immediate burning and sharp stinging sensation.Cause tissue damage: Prolonged exposure to formic acid can irritate and damage skin cells, leading to redness, swelling, and itching.
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About Carboxylic Acids
Carboxylic acids are named and studied through the combined effects of the carbonyl and hydroxyl groups, their preparation, acidity and hydrogen bonding. Reactions include neutralisation, esterification, reduction and conversion into acid chlorides, anhydrides, esters and amides, with emphasis on how these derivatives interconvert.
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