Using a potential energy diagram,explain/illustrate the preferential formation of the 3 substituted product instead of the 2 or 4 product in the electrophilic aromatic substitution of pyridine. 
Definitions:
Factor Analysis
A statistical method used to identify underlying variables, or factors, that explain the pattern of correlations within a set of observed variables.
Statistical Procedure
A method of collecting, analyzing, interpreting, and presenting data.
Variables
Elements or factors that can change and affect the outcome of a study or experiment, classified into different types such as independent, dependent, and control variables.
Five-factor Model
A framework identifying five major dimensions of human personality: openness, conscientiousness, extraversion, agreeableness, and neuroticism.
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