question_answer

Which of the following reaction takes place when a mixture of concentrated\[HN{{O}_{3}}\]and \[{{H}_{2}}S{{O}_{4}}\]reacts with benzene at 350K?

A)  Sulphonation   

B)  Nitration

C)  Hydrogenation  

D)  Dehydration

Correct Answer: B

Solution :

  The addition of\[-N{{O}_{2}}\]group on the benzene ring in the presence of cone.\[{{H}_{2}}S{{O}_{4}}\]and cone. \[HN{{O}_{3}}\]is known as nitration reaction.