Question Detail
Question
Which of the following is a Lewis acid?
Correct Answer
Option A is the correct answer.
Detailed Explanation
A Lewis acid is an electron-pair acceptor. AlCl3 has an incomplete octet and can accept a lone pair, making it a Lewis acid. Methanol, ammonia, and dimethyl ether are Lewis bases (electron-pair donors).
Hint
Which species is electron-deficient and can accept electrons?