Multiple choice

Why is common salt added to soap during its production?

  1. To decrease the solubility of the soap

  2. To increase the solubility of the soap

  3. To produce leather with hard water

  4. To provide greater cleaning action

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

Common salt (sodium chloride) is added during soap manufacturing to reduce the solubility of soap in water, a process known as salting out. This causes the soap to precipitate and separate cleanly from the aqueous solution.