Chemistry - GOC Question with Solution | TestHub

${\mathrm{H}}_1$ is an aryl hydrogen (sp2, strongest bond), ${\mathrm{H}}_3$ is on a methyl group (primary) and ${\mathrm{H}}_2$ is benzylic (weakest, resonance-stabilised radical). Bond strength : 1 $>$ 3 $>$ 2.