Write the chemical equation for preparing sodium soap from glyceryl oleate and glyceryl palmitate. Structural formulae of these compounds are given below.
$(i)$ $(C_{15}H_{31}COO)_{3}C_{3}H_{5}$ - Glyceryl palmitate
$(ii)$ $(C_{17}H_{33}COO)_{3}C_{3}H_{5}$ - Glyceryl oleate

(N/A) The process of preparing soap by heating glyceryl esters of fatty acids with aqueous sodium hydroxide is called saponification.
$(i)$ Saponification of glyceryl palmitate:
$(C_{15}H_{31}COO)_{3}C_{3}H_{5} + 3NaOH \xrightarrow{\text{Heat}} C_{3}H_{5}(OH)_{3} + 3C_{15}H_{31}COONa$ (Sodium palmitate,a soap)
$(ii)$ Saponification of glyceryl oleate:
$(C_{17}H_{33}COO)_{3}C_{3}H_{5} + 3NaOH \xrightarrow{\text{Heat}} C_{3}H_{5}(OH)_{3} + 3C_{17}H_{33}COONa$ (Sodium oleate,a soap)