Paulo Has a Persistent and Unreasonable Fear of Spiders

question 13

Multiple Choice

Paulo has a persistent and unreasonable fear of spiders. He could be displaying symptoms of a(n)

• A) obsession.
• B) compulsion.
• C) phobia.
• D) hysteria.

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Definitions:

Regiochemistry

This term relates to the orientation of the addition or substitution of a chemical bond in a molecule, determining the structure of the resulting product.

Cycloaddition

A chemical reaction in which two or more unsaturated molecules (or parts of the same molecule) combine to form a cyclic compound.

Sigmatropic Rearrangement

A type of pericyclic reaction in which a σ-bond (sigma bond) changes position relative to a π system (pi system) within a molecule, following specific suprafacial or antarafacial pathways.

Diels-Alder

A chemical reaction between a diene and a dienophile, resulting in the formation of a cyclohexene derivative.