Chemistry - Carbonyl compounds Question with Solution | TestHub

In this sequence of reaction three times aldol reaction occurs first than cross Cannizaro reaction takes place as follows
${\text{CH}}_{\text{3}}-\text{CHO}+\text{3HCHO}\stackrel{{\text{OH}}^{-}}{\to }{{\text{(CH}}_{\text{2}}\text{OH)}}_{\text{3}}-\text{C}-\text{CHO}$
${{\text{(CH}}_{\text{2}}\text{OH)}}_{\text{3}}-\text{C}-\text{CHO}\stackrel{{\text{OH}}^{-}}{\to }\text{C}-{{\text{(CH}}_{\text{2}}\text{OH)}}_{\text{4}}$