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  4. Increasing order of acid strength among p-methoxyphenol, p-methylphenol and p-nitrophenol is

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Q. Increasing order of acid strength among p-methoxyphenol, p-methylphenol and p-nitrophenol is

NTA AbhyasNTA Abhyas 2020

Solution:

$-OCH_{3},-CH_{3}$ are electron donating groups so decrease the acidic character of phenols. $-NO_{2},-CN$ are electron withdrawing groups, tend to increase the acidic character. Hence acidic strength order is

p-methoxyphenol < p-methylphenol < p-nitrophenol.