Concept:Polyhydroxy derivatives of benzene have specific common names based on the positions of
−OH groups.
Explanation:Benzene-1,2,3-triol has three hydroxyl groups on adjacent carbon atoms.
The positions are
1,2, and
3, so the
−OH groups are present on three consecutive carbons.
This arrangement is known by the common name pyrogallol.
Other common names: Phloroglucinol is benzene-1,3,5-triol, catechol is benzene-1,2-diol, and quinol is benzene-1,4-diol.
Answer:The correct option is B. Pyrogallol.
