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  4. Which is obtained on treating phenol with dilute HNO3 ?

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Q. Which is obtained on treating phenol with dilute $ HN{{O}_{3}} $ ?

Bihar CECEBihar CECE 2006Alcohols Phenols and Ethers

Solution:

$-OH$ group is an activating group, hence increase electron density on o-and p-position in benzene ring. Thus phenol very easily undergoes nitration (electrophilic substitution and give trinitrophenol i. e., picric acid.

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