Chemistry In Everyday Life Question 146
Question: Which of the following represents soap-
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:
[a] Soaps are the sodium or potassium salts 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.