Secondary Data

question 94

Multiple Choice

Secondary data

• A) may provide some background, but never provides the answer.
• B) is information that has been collected already.
• C) is rarely available and is expensive.
• D) is specifically collected to solve a current problem.
• E) can be in the form of online surveys or observations.

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Definitions:

Gaseous HCl

Hydrochloric acid in its gaseous form, commonly used in chemical synthesis and processing.

Propanoic Acid

An organic compound, a colorless, oily liquid with a pungent odor, used industrially in the production of esters, as a preservative, and in cosmetics.

Amino Acid

Organic molecules used as the building blocks of proteins, characterized by an amino group, a carboxyl group, and a specific side chain attached to a central carbon atom.

Propionic Acid

A naturally occurring carboxylic acid with chemical formula C3H6O2, used in food preservation.