Chemistry - AMINES Question with Solution | TestHub

 ${\mathrm{pK}}_{\mathrm{b}}\propto \frac{1}{\text{ Basic strength }\left({\mathrm{K}}_{\mathrm{b}}\right)}$
${\mathrm{K}}_b\propto +1,+\mathrm{M}$ effect $\left({\mathrm{e}}^{-}\right.$ density)
${\mathrm{K}}_{\mathrm{b}}\propto \frac{1}{-\mathrm{L}-\mathrm{M}\text{ effect }}$

${\mathrm{K}}_b=1>2>4>3$

${\mathrm{pK}}_{\mathrm{b}}=1<2<4<3$