question_answer

Using anhydrous \[\text{AlC}{{\text{l}}_{3}}\] as catalyst, which one of the following reactions produce ethylbenzene (PhEt) ?

A) \[{{\text{H}}_{\text{3}}}\text{C}\text{C}{{\text{H}}_{\text{2}}}\text{OH}+\text{ }{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{6}}}\]

B) \[\text{C}{{\text{H}}_{\text{3}}}\text{CH}=\text{C}{{\text{H}}_{\text{2}}}+{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{6}}}\]

C) \[{{\text{H}}_{\text{2}}}\text{C}=\text{C}{{\text{H}}_{\text{2}}}\text{+}{{\text{C}}_{\text{6}}}{{\text{H}}_{6}}\]

D) \[{{\text{H}}_{\text{3}}}\text{C}-\text{C}{{\text{H}}_{\text{3}}}+{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{6}}}\]

Correct Answer: C

Solution :

  By the reaction of benzene with ethylene in presence of anhydrous. \[\text{A1C}{{\text{1}}_{\text{3}}},\]ethyl benzene is produced,