JEE MAIN - Chemistry (2023 - 29th January Morning Shift - No. 9)
The increasing order of $$\mathrm{pK_a}$$ 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 :
(A), (E), (B), (D), (C)
(C), (E), (D), (B), (A)
(C), (D), (E), (B), (A)
(A), (B), (E), (D), (C)
Explanation
_29th_January_Morning_Shift_en_9_1.png)
Order of acidity for following phenol is A > B > E > D > C.
- M and – I increases acidity.
+ M and + I decreases acidity.
$$ \therefore $$ Their pKa value is A < B < E < D < C.
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