Choose the incorrect statement.
1
m - Cresol is a weaker acid than Phenol.
2
Acidic nature of Phenol is due to -I effect of oxygen of the hydroxyl group.
3
Acetylation of Salicylic acid produces 2-Acetoxybenzoic acid.
4
Phenol on heating with Conc. H2SO4 yields sulphanilic acid.