MCQ
Which of the following can be used as the halide component for Friedel-Crafts reaction ?
- AChlorobenzene
- BBromobenzene
- CChloroethane
- ✓Isopropyl chloride

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$CH_3 - CH_3, CH_3 - CH_2 $$- CH_3, (CH_3)_2CH - CH_3,$
$ CH_3 - CH_2 - CH(CH_3)_2.$
Increasing order of stability of the radicals is
$(i)\, {CCl_3}^-$ $(ii)\,CCl_2$ $(iii)\, (SiH_3)_2O$ $(iv)\, N(SiH_3)_3$