The correct order of basicity of the followin | vedclass

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(C) The basicity of the given compounds depends on the stability of the conjugate acid formed after protonation and the resonance stabilization of the

Vedclass · Accepted Answer

$2 < 1 < 3 < 4$

Vedclass · Answer

(C) The basicity of the given compounds depends on the stability of the conjugate acid formed after protonation and the resonance stabilization of the lone pair on nitrogen atoms.$(1)$ $CH_3CH_2NH_2$ (Ethylamine): $A$ primary aliphatic amine, basic due to the $+I$ effect of the ethyl group.$(2)$ $CH_3CH=NH$ (Ethylideneimine): The nitrogen atom is $sp^2$ hybridized, making the lone pair less available for protonation compared to $sp^3$ hybridized nitrogen.$(3)$ $CH_3C(=NH)NH_2$ (Acetamidine): The lone pair on the imine nitrogen is involved in resonance with the amino group, stabilizing the conjugate acid significantly.$(4)$ $H_2NC(=NH)NH_2$ (Guanidine): This is the most basic compound because the positive charge on the conjugate acid is delocalized over three nitrogen atoms through resonance, providing maximum stability.Thus, the order of basicity is $2 < 1 < 3 < 4$.

The correct order of basicity of the following compounds is

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