• # question_answer Which of the following describes correct sequence for decreasing Lewis acid nature? A) $BC{{l}_{3}}>B{{E}_{3}}>BB{{r}_{3}}$B) $BB{{r}_{3}}>BC{{l}_{3}}>B{{F}_{3}}$C) $BB{{r}_{3}}>B{{F}_{3}}>BC{{l}_{3}}$D) $B{{F}_{3}}>BC{{l}_{3}}>BB{{r}_{3}}$

Due to back bonding $B{{F}_{3}}$shows maximum tendency due to small size of F.