question_answer

Which is obtained on treating phenol with cone. \[HN{{O}_{3}}\]?

A)                        

B)  

C)               

D)  None of the

Correct Answer: C

Solution :

                 Key Idea ? OH group is an activating group and it increase electron density on o- and p - position in benzene ring. When phenol reacts with cone. HN03 in the presence of cone. \[{{H}_{2}}S{{O}_{4}}\], then nitration (electrophilic substitution) takes place and 2, 4, 6-trinitrophenol is obtained.                                        2, 4, 6-trinitrophenol Note - 2,4,6-trinitrophenol is also called picric acid. It is an explosive.