Q. Which of the following represents soap?
A) $C_{17}H_{35}COOK$
B) $C_{17}H_{35}COOH$
C) $C_{15}H_{31}COOH$
D) $\left( C_{17}H_{35}COO \right)_{2}Ca$
Explanation
(a)
Soaps are the sodium or potassium salt of higher fatty acids, e.g., $C_{17}H_{35}COOK$ (potassium stearate). These are obtained by alkaline hydrolysis of oils and fats. The reaction is called saponification.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.