Which chemical used to prevent evaporation from surface of water in water bodies?
Correct answer: C. Cetyle alcohol
- A. both A and B
- B. Methyle alcohol
- C. Cetyle alcohol
- D. None of these
Explanation
Cetyl alcohol, also called hexadecanol, forms a thin film on the water surface that reduces evaporation. Methyl alcohol is volatile and does not serve this purpose.
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