Consider the following four fatty acids: arachidonic, linoleic, linolenic and stearic - VCE - SSCE Chemistry - Question 9 - 2022 - Paper 1
Question 9
Consider the following four fatty acids: arachidonic, linoleic, linolenic and stearic.
Which one of the following statements related to these four fatty acids is cor... show full transcript
Worked Solution & Example Answer:Consider the following four fatty acids: arachidonic, linoleic, linolenic and stearic - VCE - SSCE Chemistry - Question 9 - 2022 - Paper 1
Step 1
A. Both linoleic acid and stearic acid are omega-3 fatty acids.
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Answer
This statement is incorrect. Linoleic acid is an omega-6 fatty acid, while stearic acid is a saturated fatty acid without any double bonds.
Step 2
B. Linoleic acid is an omega-3 fatty acid and contains three C=C double bonds.
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Answer
This statement is also incorrect. Linoleic acid is an omega-6 fatty acid and contains two C=C double bonds, not three.
Step 3
C. Arachidonic acid is an omega-6 fatty acid and contains three C=C double bonds.
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Answer
This statement is correct. Arachidonic acid is an omega-6 fatty acid that indeed has four double bonds.
Step 4
D. Both linoleic acid and arachidonic acid are omega-6 fatty acids and contain one C=C double bond.
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Answer
This statement is partially incorrect. Linoleic acid is an omega-6 fatty acid and contains two double bonds, while arachidonic acid, also omega-6, has four double bonds.
