試題詳解

複選題
20. How many of the following statements regarding bromination (Br₂/FeBt₃) of toluene is/are correct? ( A ) Reaction begins with the complexation of bromine with the FeBr₃ ( B ) Formation of Br⁺ ion is not the rate determining step ( C ) Addition of Br⁺ to toluene to form the arenium ion is the rate determining step ( D ) 4-Bromotoluene is formed by losing a hydride from the arenium ion
(A)1
(B)2
(C)3
(D)4