MCQ practice · SSC Chemistry Board questions · Chapter 12: Chemistry in Our Lives
A 4%-10% aqueous solution of ethanoic acid is called
Think it through first, then pick an option.
- a Formalin
- b Vinegar
- c Rectified spirit
- d Methylated spirit
Answer and explanation
Correct answer: b Vinegar
A 4%-10% aqueous solution of ethanoic or acetic acid is vinegar.
Why the other options are wrong
- a Formalin: Formalin is toxic and must not preserve food; 4-10% ethanoic acid is vinegar.
- c Rectified spirit: Rectified spirit is an ethanol solution, not ethanoic acid. The answer is vinegar.
- d Methylated spirit: Methylated spirit is also an alcohol mixture, not an acid solution. The answer is vinegar.
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