Which one the following fatty acid is more soluble in an organic solvent and has higher melting point____________?
Correct answer: C. Palmitic acid
- A. Acetic acid
- B. Butyric acid
- C. Palmitic acid
- D. All have same
Explanation
Palmitic acid has the longest hydrocarbon chain among the choices, so its nonpolar part interacts well with organic solvents, and its long, straight chains pack tightly to produce the highest melting point. A student may choose acetic acid because it is the smallest and most familiar fatty acid, but a short chain gives a lower melting point and greater water solubility, not the highest melting point.
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