Which of the following statement(s) regarding friedal craft alkylation is/are correct?

Options

A. The action of `Me_3C . CH_2 Cl// AlCl_3` on benzen yields almost wholly the rearranged product Ph. `Cme_2. CH_2 Me `
B. Initial electrophile complex being polarized enough to allow the rearrangement of `[Me_3C.CH_2]^(delta+).........Cl.......AlCl_3` to the more stable `[Me_2C. CH_2 Me]^(delta+) ......... Cl .......... overset(delta-)(Al)Cl_3`.
C. By constrast `Me_3 C. CH_2Cl// FeCl_3` on benzene is found to yield almost wholly unrearraged product `PhCH_2. CMe_3`
D. The % of rearranged product from a given halide & Lewis acid being less at lower temperature as compared to that at high temperature .

Answer

A, B, C, D

Explanation

Friedel craft alkylation