Question:

Oleic acid, shown below, is 

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Unsaturated = at least one C=C bond. Oleic acid → monounsaturated (one double bond), linoleic acid → polyunsaturated (two double bonds).
Updated On: Dec 5, 2025
  • A saturated fatty acid
  • An unsaturated fatty acid
  • Insoluble in water
  • Soluble in acetone
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The Correct Option is B, C, D

Solution and Explanation

Step 1: Identify the structure.
Oleic acid is an 18-carbon monounsaturated fatty acid, denoted as C$_{18}$H$_{34}$O$_2$, with one cis double bond at the 9th carbon.
Step 2: Determine saturation.
Because of the presence of a C=C double bond, it is unsaturated. Saturated fatty acids contain no double bonds between carbons.
Step 3: Conclusion.
Hence, oleic acid is an unsaturated fatty acid.
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