Fossil fuels are usually found-
2 answers:
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Answer: Option (c) is the correct answer.
Explanation:
A long hydrocarbon chain that consists a terminal carboxylic group is known as a fatty acid.
An unsaturated fatty acid consists a double bond within the fatty acid chain. If a fatty acid contains more than one double bond then it is known as polyunsaturated fatty acid.
For example, oelic acid has chemical formula is an unsaturated fatty acid.
Therefore, we can conclude that option (c) represents an unsaturated fatty acid.