Question Detail
Question
Which alkyl halides react most readily by nucleophilic substitution?
Correct Answer
Option B is the correct answer.
Detailed Explanation
Iodide is the best leaving group among halides (I- > Br- > Cl- > F-) because it is the least basic and most polarizable. Therefore, ethyl iodide reacts most readily in nucleophilic substitution.
Hint
Which halide is the best leaving group?