Alcohols Phenols And Ethers Question 5

Question 5 - 29 January - Shift 1

The increasing order of $pK_a$ for the following phenols is

(1) $2, 4$-Dinitrophenol

(2) $4$ - Nitrophenol

(3) $2, 4, 5$-Trimethylphenol

(4) Phenol

(5) $3$-Chlorophenol

Show Answer

Answer: (2)

Solution:

Formula: Inductive and Resonance Effect

Order of acidity for following phenol is

Description of the image

$- M$ and $- I$ increases acidity