MCQ practice · SSC Chemistry Board questions · Chapter 12: Chemistry in Our Lives
Which is an approved food preservative?
Think it through first, then pick an option.
- a Calcium carbide
- b Benzoic acid
- c Acetylene
- d Ethylene
Answer and explanation
Correct answer: b Benzoic acid
By the book, benzoic acid is an approved food preservative.
Why the other options are wrong
- a Calcium carbide: Carbide is used by dishonest traders to ripen fruit; it is not approved.
- c Acetylene: Acetylene is an unauthorized food preservative.
- d Ethylene: Ethylene is unauthorized too; it harms the body.
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