Question

Which of the following compounds undergoes nucleophilic substitution reaction most easily?

• A. A
• B. B
• C. C
• D. D

Hint:

The ease of nucleophilic substitution depends on the leaving group, with halides being the most common good leaving groups.

Answer 1

The Correct Option is A

In nucleophilic substitution reactions, the reactivity depends on the nature of the leaving group. Chlorine in \( \text{C}_6\text{H}_5\text{Cl} \) is a good leaving group, making this compound most reactive towards nucleophilic substitution.

Step 2: Conclusion.
The compound \( \text{C}_6\text{H}_5\text{Cl} \) undergoes nucleophilic substitution most easily, corresponding to option (a).