Published by:
CGP EDU Academic Team
Published on: August 11, 2026
Why do boron and aluminium halides behave as Lewis acids?
A
Both halides 
can accept electrons from a donor to complete their octet.
can accept electrons from a donor to complete their octet.
B
Both halides 
can donate a pair of electrons.
can donate a pair of electrons.
C
Both halides 
are covalent polymeric structures.
are covalent polymeric structures.
D
Both halides 
react with water to give hydroxides and HCl.
react with water to give hydroxides and HCl.
Text Solution
Verified by ExpertsThe correct answer is:
A
Both boron and aluminium in their trihalides 
possess six electrons in their valence shell. To complete the octet they can accept a lone pair of electrons acting as Lewis acids.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
Which of the following statements about is not correct
In the reaction The A is
The molecular formula of felspar is
The most acidic of the following compounds is
Identify the statement that is not correct as far as structure of diborane is concerned
Soft heavy metal melts at and is used in making heat sensitive thermometers the metal is