Hydroquinone is a phenol; it contains two OH groups at:
Correct answer: C. Position 1 and 4
- A. Position 1 and 2
- B. Position 1 and 3
- C. Position 1 and 4
- D. Position 2 and 3
Explanation
The correct answer is Option C: Position 1 and 4. Hydroquinone is a type of phenol where the two hydroxyl (OH) groups are positioned opposite each other on a benzene ring, specifically at the 1 and 4 positions. This gives hydroquinone its distinct para configuration. Option A describes catechol, where the OH groups are adjacent. Option B refers to hydroxyquinone, where the OH groups are separated by one carbon. Option D describes resorcinol, which also has a separation by one carbon but at different positions than hydroquinone.
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About Alcohols and Phenols
Alcohols are classified as primary, secondary or tertiary and studied through their hydrogen bonding, acidity, oxidation and reactions with active metals, acids and halogenating agents. Phenols require separate treatment because the hydroxyl group is attached to an aromatic ring, making their acidity and electrophilic substitution different from ordinary alcohols.
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