1. Tardigrade
  2. Question
  3. Chemistry
  4. The increasing order of pK a for the following phenols is (A) 2,4-Dinitrophenol (B) 4- Nitrophenol (C) 2,4,5-Trimethylphenol (D) Phenol (E) 3-Chlorophenol Choose the correct answer from the option given below:

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Q. The increasing order of $pK _{ a }$ for the following phenols is
(A) 2,4-Dinitrophenol
(B) 4- Nitrophenol
(C) 2,4,5-Trimethylphenol
(D) Phenol
(E) 3-Chlorophenol
Choose the correct answer from the option given below:

JEE MainJEE Main 2023Alcohols Phenols and Ethers

Solution:

Order of acidity for following phenol is
image
- $M$ and $- I$ increases acidity
$+ M$ and $+ I$ decreases acidity