Trivia Questions With Answers!

Soap Trivia Quiz Questions with Answers

Trivia quiz questions with answers about soap

What is soap?
A: Soap is a salt of a fatty acid used in a variety of cleansing and lubricating products.

In a domestic setting, soaps are surfactants usually used for what?
A: Washing, bathing, and other types of housekeeping.

In industrial settings, soaps are used as what?
A: Thickeners, components of some lubricants, and precursors to catalysts.

When used for cleaning what does soap do?
A: Soap solubilizes particles and grime, which can then be separated from the article being cleaned.

 In hand washing, as a surfactant, when lathered with a little water, how does soap kill microorganisms?
A: By disorganizing their membrane lipid bilayer and denaturing their proteins.


It also emulsifies oils, enabling them to be what?
A: Carried away by running water.

How is soap made?
A: By mixing fats and oils with a base, as opposed to detergent which is created by combining chemical compounds in a mixer.

Evidence exists for the production of soap-like materials in ancient what?
A: Babylon around 2800 BC.

Since they are salts of fatty acids, soaps have what general formula?
A: (RCO2−) nMn+ (Where R is an alkyl, M is a metal and n is the charge of the cation).

When M is Na (Sodium) or K (Potassium), the soaps are called what?
A: Toilet soaps, used for handwashing.


Many metal dications (Mg2+, Ca2+, and others) give what?
A: Metallic soap.

When M is Li, the result is lithium soap (e.g., lithium stearate), which is used in what?
A: High-performance greases.

Unlike detergents, when used in hard water soap does what?
A: It does not lather well and a scum of stearate, a common ingredient in soap, forms as an insoluble precipitate.

Soaps are key components of most what?
A: Lubricating greases and thickeners.

Greases are usually emulsions of calcium soap or lithium soap and what?
A: Mineral oil.


In ancient times, lubricating greases were made by the addition of what to olive oil?
A: Lime.

Sodium soaps, prepared from sodium hydroxide, are firm, whereas potassium soaps, derived from potassium hydroxide, are what?
A: Softer or often liquid.

Historically, potassium hydroxide was extracted from what?
A: The ashes of bracken or other plants.

For making toilet soaps, triglycerides (oils and fats) are derived from what?
A: Coconut, olive, or palm oils, as well as tallow.

Soap made from pure olive oil is sometimes called what?
A: Castile soap or Marseille soap.


The term "Castile" is also sometimes applied to soaps from a mixture of what?
A: Oils, but a high percentage of olive oil.

The earliest recorded evidence of the production of soap-like materials dates back to when?
A: Around 2800 BC in ancient Babylon

A formula for making soap was written on a Sumerian clay tablet around 2500 BC; the soap was produced by doing what?
A: Heating a mixture of oil and wood ash, the earliest recorded chemical reaction, and used for washing woolen clothing.

The Ebers papyrus (Egypt, 1550 BC) indicates the ancient Egyptians used soap as a what?
A: A medicine and combined animal fats or vegetable oils with a soda ash substance called Trona to create their soaps.

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