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
$- M$ and $- I$ increases acidity