When reacted with Br₂ and light,which C-H bond 2-pentene will preferentially dissociate to give a radical? A) The C-H_a bond B) The C-H_b bond C) The C-H_c bond D) The C-H_d bond E) The C-H_e bond

Question

Quizplus · Accepted Answer

The preference for dissociation of a C-H bond in a molecule during a radical reaction depends on the strength of the bond and the stability of the resulting radical. In this case, the C-H bond in position b is primary, meaning it is only attached to one other carbon atom, while the other C-H bonds in the molecule are secondary or tertiary. Primary C-H bonds are weaker than secondary or tertiary C-H bonds, and thus more likely to dissociate. Additionally, the resulting b-radical is stabilized by resonance, which further increases the likelihood of dissociation of the C-H bond in position b. Therefore, the C-H bond in position b will preferentially dissociate to give a radical.

When Reacted with Br2 and Light,which C-H Bond 2-Pentene Will

When Reacted with Br₂ and Light,which C-H Bond 2-Pentene Will