Question Detail
Question
Which of the following is not an electrophile?
Correct Answer
Option A is the correct answer.
Detailed Explanation
NH3 (ammonia) has a lone pair of electrons on nitrogen and is a nucleophile, not an electrophile. Br+, AlCl3 (Lewis acid), and NO2+ are all electron-deficient and act as electrophiles.
Hint
Is NH3 electron-rich or electron-deficient?