Define Internal and External Validity, and Give an Example Illustrating

question 15

Essay

Define internal and external validity, and give an example illustrating each.

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Definitions:

Mechanism

A detailed step-by-step description of how a chemical reaction proceeds at the molecular level.

NaCN

Sodium cyanide, a white solid highly soluble in water, used in organic synthesis and metal processing.

Concentrated KMnO4

A strong oxidizing agent in concentrated form, potassium permanganate (KMnO4) is used in various chemical reactions, particularly in organic chemistry for oxidation reactions.

Oxalyl Chloride

A colorless liquid organic compound with the formula (COCl)2, used as a reagent in organic synthesis, notably for the introduction of the acyl chloride group.