The correct order of basicities of the following compounds is

The correct order of basicities of the following compounds is

1. $2>1>3>4$
2. $1>3>2>4$
3. $3>1>2>4$
4. $1>2>3>4$

Solution

Guanidine is most basic because its conjugate acid is stabilized by two equivalent resonance structures,


Further $2^{\circ}$ amines are more basic than $1^{\circ}$, while amides are least basic due to delocalisation of the lone pair of electrons on $\mathrm{N}$

Thus the correct order of basicities is /

Asked in: JEE-TOPICTESTS-CHEMISTRY

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