Question:

What is the number of $>\text{C} = \text{C}<$ bonds present in a linolenic acid molecule?

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Remember the order 1, 2, 3 for Oleic, Linoleic, and Linolenic acids respectively.
Updated On: May 14, 2026
  • Zero
  • One
  • Two
  • Three
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The Correct Option is D

Solution and Explanation


Step 1: Concept
Fatty acids are classified as saturated or unsaturated based on the number of carbon-carbon double bonds.

Step 2: Meaning
Linolenic acid is an essential polyunsaturated omega-3 fatty acid with 18 carbons.

Step 3: Analysis
Stearic acid (0), Oleic acid (1), Linoleic acid (2), and Linolenic acid (3) show a progression in the number of double bonds.

Step 4: Conclusion
Linolenic acid contains exactly three carbon-carbon double bonds in its hydrocarbon chain. Final Answer: (D)
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