question_answer

Out of \[C{{H}_{3}}\overset{\oplus }{\mathop{C}}\,HC{{H}_{3}}\] and \[C{{F}_{3}}\overset{\oplus }{\mathop{C}}\,HC{{H}_{3}}\] which is more reactive and why?

Answer:

                \[C{{F}_{3}}\overset{\oplus }{\mathop{C}}\,HC{{H}_{3}}\]more reactive because F atom being highly electronegative has a strong-\[I\] effect. It destabilises the carbocation towards nucleophilic attack as compared to \[C{{H}_{3}}\overset{\oplus }{\mathop{C}}\,HC{{H}_{3}}\] in which \[C{{H}_{3}}\] group is an electron releasing group and it stabilises the carbocation.