Which of the following halides is the most acidic ?

Question

Which of the following halides is the most acidic ? (A) PCl3  (B) SbCl3  (C) BiCl3 (D) CCl4

Tardigrade Admin · Accepted Answer

CCI4 cannot accept a lone pair of electron. As such it is not a Lewis acid. Acid strength of trichlorides is in the order PCl3 > AsCl3 > SbCl3 Thus PCl3 is more acidic than SbCl3

Q. Which of the following halides is the most acidic ?

$PC l_{3}$

$S b C l_{3}$

$B i C l_{3}$

$CC l_{4}$

$CC I_{4}$ cannot accept a lone pair of electron. As such it is not a Lewis acid. Acid strength of trichlorides is in the order
$PC l_{3} > A s C l_{3} > S b C l_{3}$
Thus $PC l_{3}$ is more acidic than $S b C l_{3}$

Q. Which of the following halides is the most acidic ?

PCl3​

SbCl3​

BiCl3​

CCl4​

CCI4​ cannot accept a lone pair of electron. As such it is not a Lewis acid. Acid strength of trichlorides is in the order PCl3​>AsCl3​>SbCl3​ Thus PCl3​ is more acidic than SbCl3​

$PC l_{3}$

$S b C l_{3}$

$B i C l_{3}$

$CC l_{4}$

$CC I_{4}$ cannot accept a lone pair of electron. As such it is not a Lewis acid. Acid strength of trichlorides is in the order
$PC l_{3} > A s C l_{3} > S b C l_{3}$
Thus $PC l_{3}$ is more acidic than $S b C l_{3}$