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  4. The order of acidic strength of phenol, p-cresol, m-nitrophenol and p-nitrophenol is

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Q. The order of acidic strength of phenol, p-cresol, m-nitrophenol and p-nitrophenol is

Rajasthan PETRajasthan PET 2008

Solution:

The acidic strength of phenol increases due to the presence of electron withdrawing group (such as $ N{{O}_{2}} $ ) while the acidic strength of phenol decreases due to the presence of electron releasing group (such as $ -C{{H}_{3}} $ ). Hence, the order of acidic strength is:

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