Chemistry In Everyday Life Question 159
Question: Which of the following represents soap
[DCE 2004]
Options:
A) $ C _{17}H _{35}COOK $
B) $ C _{17}H _{35}COOH $
C) $ C _{15}H _{31}COOH $
D) $ {{(C _{17}H _{35}COO)}_2}Ca $
Show Answer
Answer:
Correct Answer: A
Solution:
Soaps are the sodium or potassium salt of higher fatty acids. e.g., $ C _{17}H _{37}COOK $ (Potassium stearate). These are obtained by alkaline hydrolysis of oils and fats. The reaction is called saponification.