Question

decreaseing order of acidity of following phenol derivatives ​

Answer 1

1 Answer. The acidity order should be 1 > 2 > 3 as they have pKa values of 9.48, 9.98, and 10.21 respectively. In case of 1, -I effect works at -ortho position and also +R effect works at -ortho position. In case of 2, -I effect works at -ortho position and also +R effect works at -ortho position.