Which of the following is the strongest Lewis acid?

Question

Which of the following is the strongest Lewis acid? (A)  BF3 (B)  BCl3 (C)  BBr3 (D)  BI3

Tardigrade Admin · Accepted Answer

The order of acid strength of Lewis acids, (i.e., boron trihalides) is as: B I2>B B r3 >B C l3>B F3 because the acid strength increases with increasing atomic size (or going down in periodic table.)

Q. Which of the following is the strongest Lewis acid?

$B F_{3}$

$BC l_{3}$

$BB r_{3}$

$B I_{3}$

The order of acid strength of Lewis acids, (i.e., boron trihalides) is as:
$B I_{2} > BB r_{3} > BC l_{3} > B F_{3}$ because the acid strength increases with increasing atomic size (or going down in periodic table.)

Q. Which of the following is the strongest Lewis acid?

BF3​

BCl3​

BBr3​

BI3​

The order of acid strength of Lewis acids, (i.e., boron trihalides) is as: BI2​>BBr3​>BCl3​>BF3​ because the acid strength increases with increasing atomic size (or going down in periodic table.)

$B F_{3}$

$BC l_{3}$

$BB r_{3}$

$B I_{3}$

The order of acid strength of Lewis acids, (i.e., boron trihalides) is as:
$B I_{2} > BB r_{3} > BC l_{3} > B F_{3}$ because the acid strength increases with increasing atomic size (or going down in periodic table.)