Which of the following gives maximum energy in metabolic processes?

$CH_2-O-COR_1$
$|$
$CH-O-COR_2$
$|$
$CH_2-O-COR_3 + 3NaOH \to (A) + 3R-COONa$ (Salt of fatty acid/soap)
Product $(A)$ of the reaction is

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

Hydrolysis of oils and fats yields which alcohol?

Shellac contains mainly

The one which has the least iodine value is