Multiple choice general knowledge science & technology

If you are making soaps and detergents from scratch, one of your starting ingredients will be:

  1. Potassium hydroxide.

  2. Sodium hydroxide.

  3. Sodium chloride.

  4. Calcium carbonate.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sodium hydroxide (NaOH), also known as lye or caustic soda, is a key ingredient in traditional soap-making through saponification - reacting with fats/oils to produce soap. Potassium hydroxide is used for liquid soaps. Sodium chloride is table salt. Calcium carbonate is not involved in soap production.

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