Which of the following is a fatty acid with only one double bond between carbon atoms?

✅Explanation: A monounsaturated fatty acid is one that has exactly one double bond between carbon atoms in its chain. Oleic acid is a monounsaturated fatty acid. It has one double bond between carbon atoms, specifically between carbons 9 and 10 in its 18-carbon chain. The structure looks like this: CH₃(CH₂)₇CH=CH(CH₂)₇COOH.

📌📌Other Options:
-(a) Palmitic acid: Palmitic acid is a saturated fatty acid. Its structure consists of a straight chain of carbon atoms fully bonded to hydrogen atoms.
-(c) Linoleic acid: Linoleic acid is a polyunsaturated fatty acid, meaning it has two double bonds between carbon atoms. It has a structure with two cis-double bonds.
-(d) Stearic acid: Stearic acid is also a saturated fatty acid, like palmitic acid.

🔑Key Points:
– Oleic acid is a monounsaturated omega-9 fatty acid that is found in high quantities in olive oil.
-This acid has a high smoke point, which makes it a good choice for most cooking ethods, including frying and baking.