MCQ
Fats, on alkaline hydrolysis, gives
  • A
    Oils
  • Soaps
  • C
    Detergents
  • D
    Glycol + acid

Answer

Correct option: B.
Soaps
b
(b) Fats are esters of higher fatty acids with glycerol, hence on alkaline hydrolysis they give back glycerol and sodium or potassium salt of acid (this is called soap).

$\underset{Fat}{\mathop{\begin{matrix}
   \begin{matrix}
   C{{H}_{2}}OCOR  \\
   |\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
\end{matrix}  \\
   CHOCOR\,\,  \\
   |\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
   C{{H}_{2}}OCOR  \\
\end{matrix}}}\,$ $+$  $3NaOH$ $\to $ $\begin{matrix}
   \begin{matrix}
   C{{H}_{2}}OH\,\,\,\,\,\,\,  \\
   |\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
\end{matrix}  \\
   \,CHOH\,\,\,\,\,\,\,\,\,\,\,\,  \\
   |\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
   C{{H}_{2}}OH\,\,\,\,\,\,  \\
\end{matrix}$ $+$ $\underset{(Soap)}{\mathop{3RCOONa}}\,$

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