The correct stability order of the following diazonium salts is:
Choose the correct answer from the options given below:
The correct stability order of the following diazonium salts is:
Choose the correct answer from the options given below:
Show Hint
- A $>$ C $>$ D $>$ B
- A $>$ B $>$ C $>$ D
- C $>$ D $>$ B $>$ A
C $>$ A $>$ D $>$ B
The Correct Option is A
Solution and Explanation
Step 1: Basic stability rule for diazonium salts.
Aryl diazonium salts are stabilized by electron donating groups on the benzene ring and destabilized by strong electron withdrawing groups.
Step 2: Effect of substituents.
(A) $-OCH_3$: Strong $+M$ (electron donating) effect, stabilizes diazonium ion greatly.
(C) H: No substituent effect, moderate stability.
(D) $-CN$: Strong $-M$ effect, reduces stability.
(B) $-NO_2$: Very strong $-M$ and $-I$ effects, maximum destabilization.
Step 3: Ordering stability.
\[ \text{A (most stable)}>\text{C}>\text{D}>\text{B (least stable)} \] Step 4: Final conclusion.
The correct stability order is A $>$ C $>$ D $>$ B, corresponding to option (1).
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