Multiple choice

Raw material required for the preparation of soap is

  1. vegetable oil.

  2. sodium hydroxide.

  3. sodium chloride.

  4. All of the above

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Soap is made by saponification, which requires vegetable oil (or animal fat) and a strong base like sodium hydroxide. Sodium chloride is used to salt out the soap from the solution.