question_answer

Which is obtained on treating phenol, with dilute \[\text{HN}{{\text{O}}_{\text{3}}}\]?

A)  

B)  

C)  

D)  None

Correct Answer: C

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 trinitro phenol i.e., picric acid.