Which ONE of the structural formulae below represents a secondary alcohol?
A
B
C
D - NSC Technical Sciences - Question 1 - 2020 - Paper 2
Question 1
Which ONE of the structural formulae below represents a secondary alcohol?
A
B
C
D
Worked Solution & Example Answer:Which ONE of the structural formulae below represents a secondary alcohol?
A
B
C
D - NSC Technical Sciences - Question 1 - 2020 - Paper 2
Step 1
Identify the structural formulae
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Answer
In this question, we need to examine each of the provided structural formulae labeled A, B, C, and D to determine which one represents a secondary alcohol.
A secondary alcohol is characterized by having the hydroxyl group (-OH) attached to a carbon atom that is itself connected to two other carbon atoms.
Step 2
Evaluate option A
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Answer
In option A, the -OH group is attached to a carbon that is connected to three other carbon atoms, indicating it is a tertiary alcohol.
Step 3
Evaluate option B
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Answer
Option B shows the -OH group attached to a carbon that connects to only one other carbon atom, classifying it as a primary alcohol.
Step 4
Evaluate option C
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Answer
Option C shows a carbon with the -OH group connected to two other carbon atoms. Thus, this structure represents a secondary alcohol.
Step 5
Evaluate option D
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Answer
In option D, the -OH group is connected to a carbon that also has a double bond with oxygen, indicating it is not an alcohol.
