Which of the Following Statements About the Rusting of Iron

question 76

Multiple Choice

Which of the following statements about the rusting of iron is true?

• A)Iron is reduced in the presence of oxygen.
• B)Iron is oxidized in the presence of oxygen.
• C)The iron(III)hydroxide forms a hard coating that protects the iron from undergoing further corrosion.
• D)Iron will rust more quickly in the absence of water.

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Definitions:

Validity

The degree to which a test or measurement accurately reflects or assesses the specific concept that it is intended to measure.

Reliability

The degree to which an assessment tool or measurement produces stable and consistent results over repeated applications or observations.

Probability Sample

A sampling method in which every member of the population has a known and non-zero chance of being selected.

Experimental Research

A research methodology that tests hypotheses and establishes cause-and-effect relationships through controlled testing and observation.