Question

Which of the following is most stable?

• A. \(\text{CH}_3\text{N}_3\text{X}^-\)
• B. \(\text{C}_6\text{H}_5\text{N}_2\text{X}^-\)
• C. \(\text{CH}_3\text{CH}_2\text{N}_2\text{X}^-\)
• D. \(\text{C}_6\text{H}_5\text{CH}_2\text{N}_2\text{X}^{2-}\)

Hint:

For the stability of compounds with charged groups, consider resonance and electron withdrawing effects from the surrounding groups.

Answer 1

The Correct Option is B

The most stable compound among these is Option (B). This is because phenyl groups in \(\text{C}_6\text{H}_5\) offer greater stabilization due to resonance and electron withdrawal, which enhances the stability of the negative charge on the nitrogen atom. Thus, the correct answer is Option (B).