Question

Which of the following is a soap?

• A. Sodium acetate
• B. Magnesium butyrate
• C. Sodium palmitate
• D. Palmitic acid

Answer 1

Answer: (C)

Sodium palmitate

Answer 2

Soaps are sodium or potassium salts of higher fatty acids like palmitic acid, stearic acid, lauric acid etc. Hence, sodium palmitate $\left( C _{15} H _{31} COONa \right)$ is a soap.