The Term "Litmus Test" Is Commonly Used to Mean a Totally

question 34

Multiple Choice

The term "litmus test" is commonly used to mean a totally definitive test. In chemistry litmus is used as an acid-base indicator. Which of the following properly relates the chemical and common usages of the term "litmus test"?

• A) Common usage is correct because the litmus test definitively defines a substance as an acid or a base.
• B) Common usage is correct because litmus dye changes color at pH = 7.
• C) Common usage is incorrect because litmus dye changes color over a range, most of which is above pH = 7.
• D) Common usage is incorrect because litmus dye changes color over a range, most of which is below pH = 7.

---

Definitions:

Reciprocal

Pertaining to a mutual relationship or action in which two entities engage in an exchange or similar actions towards each other.

Symmetry

A balanced and proportionate similarity found in two halves of an object, that is, when one half mirrors the other.

Flesh Tone

A color or shade resembling the skin of a human, often used in art, makeup, and fashion to indicate a natural skin color.

Character

Character represents the qualities or traits that define a person's moral and ethical actions and reactions.