In phenol carbon atom attached to -OH group undergoes -
(c) sp2 hybridisation The carbon to which the hydroxyl group is bonded in phenol is sp2 hybridised. The increased s-character of the carbon orbital used to form the C—O bond makes it more electron-withdrawing. Thus, conjugation with the aromatic ring would make the sp2 hybridised oxygen atom more likely.
Solution for question: In Phenol Carbon Atom Attached to -OH Group Undergoes concept: Phenols - Physical and Chemical Properties. For the courses HSC Science (Electronics), HSC Science (Computer Science), HSC Science (General)