Chemistry - AMINES Question with Solution | TestHub

Question Explanation:

The question asks to identify the correct statements regarding the relative stability of aryldiazonium ions and alkyldiazonium ions and the factors influencing their stability.

Concept:

This question is based on  Stability of Diazonium Salts.

Solution:

1.Resonance Stabilization:

Aryldiazonium ions (Ar–N₂⁺ ) are strongly stabilized by resonance because the aromatic ring delocalizes the positive charge into its π system. Alkyldiazonium ions (R–N₂⁺ ) lack this stabilization.

2.Effect of Substituents:

The positive charge is delocalized over the ring, and electron-donating groups at ortho/para positions further stabilize the diazonium ion by enhancing this delocalization. 3.Decomposition Pathway:

Aryldiazonium ions avoid forming aryl carbocations because C–N bond as partial double bond character.

4.Instability of Alkyldiazonium Ions:

Alkyldiazonium ions easily lose N₂ even at low temperatures to form comparatively stable alkyl carbocations, making them highly unstable species.