Question 21
MediumOriginal questionAn ant sting hurts because the ant injects methanoic (formic) acid. Which is a sensible first-aid remedy to rub on the sting?
Show the answer and explanation
CorrectNot quiteAnswer C
Correct answer: C
Explanation
An acid is neutralised by a base.
Baking soda (sodium hydrogencarbonate) is a mild base, so it neutralises the formic acid and eases the pain.
Worth noting
Lemon juice and vinegar are acids themselves and would not help; salt solution is neutral.
- Concept
- Neutralisation in daily life
- Typical timeTypical
- 60 s
- Your timeYours
- —
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