P-Block Elements Ques 211
Question: Among the halides
(I) $ BCl_3 $
(II) $ AlCl_3 $
(III) $ GaCl_3 $
(IV) $ InCl_3 $
The order of decreasing Lewis acid character is:
Options:
A) I, II, III, IV
B) II, III, IV, I
C) III, IV, II, I
D) IV, III, II, I
Show Answer
Answer:
Correct Answer: D
Solution:
The acidic character of chlorides increases down the group $ BCl_3 $ is weak acid to show $ p\pi -p\pi $ back bonding.
