Which of the following is an example of trihydric phenol?
A
Catechol
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B
Quinol
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C
Pyrogallol
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D
Cresol
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Solution
The correct option is C Pyrogallol Trihydric alcohols and phenol-Compounds in which three hydrogen atoms are replaced by three hydroxyl groups.
Examples of trihydric phenol: 1, 2, 4-Benzenetriol (Hydroxyquinol), 1, 2, 3-Benzenetriol (Pyrogallol) etc.