Which of the following fatty acids is the most unsaturated?
A - Scottish Highers Chemistry - Question 8 - 2017
Question 8
Which of the following fatty acids is the most unsaturated?
A. $C_{n}H_{2n}COOH$
B. $C_{n}H_{2n-2}COOH$
C. $C_{n-1}H_{2n-2}COOH$
D. $C_{n-2}H_{2n-2}COOH$
Worked Solution & Example Answer:Which of the following fatty acids is the most unsaturated?
A - Scottish Highers Chemistry - Question 8 - 2017
Step 1
A. $C_{n}H_{2n}COOH$
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Answer
This represents a saturated fatty acid, containing no double bonds.
Step 2
B. $C_{n}H_{2n-2}COOH$
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Answer
This contains one double bond, making it unsaturated.
Step 3
C. $C_{n-1}H_{2n-2}COOH$
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Answer
This has two double bonds, making it more unsaturated than B.
Step 4
D. $C_{n-2}H_{2n-2}COOH$
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Answer
This contains three double bonds, making it the most unsaturated of the options.
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