Identify the organic compound, which on heating with strong solution of $\mathrm{NaOH}$ , is partly converted into an acid salt and partly into an alcohol 

Benzaldehyde, C₆​H₅​CHO, on heating with strong solution of NaOH, is partly converted into an add salt and partly into alcohol. Benzaldehyde lacks $\mathrm{\alpha }$-H atom. Hence, when it is heated with strong NaOH solution, it undergoes cannizzaro reaction in which, one molecule of benzaldehyde is oxidized to benzoic acid and other molecule is reduced to benzyl alcohol. Benzoic acid forms sodium salt with NaOH.

$2{\mathrm{C}}_6{\mathrm{H}}_5\mathrm{CHO} \stackrel{\mathrm{NaOH}}{\to } {\mathrm{C}}_6{\mathrm{H}}_5\mathrm{COONa}+{\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_2\mathrm{OH}$