The species which can best serve as an initiator for the cationic polymerization is
Answer»
`HNO_3` `AlCl_3` BuLi `LiAIH_4`
SOLUTION :CATIONIC polmyerization is INITIATED by USE of strong protonic acid such as `H_2SO_4` or Lewis acids such as `AICI_3,BF_3`, etc. Thus , option (B) is correct.