Evaluate the Expression $91 - 20 \cdot 3 + 23$ A) 54
B) 236
C) 97
D) 1846

question 500

Multiple Choice

Evaluate the expression.
- $91 - 20 \cdot 3 + 23$

• A) 54
• B) 236
• C) 97
• D) 1846

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Definitions:

Aromatic

Organic compounds that contain one or more benzene rings or similar structures, characterized by a high degree of chemical stability and unique reactions.

Π Network

A system of conjugated pi bonds in a molecule, allowing delocalized electron movement across the structure, affecting its reactivity and properties.

Anti-aromatic

Refers to cyclic compounds that do not follow the rules of aromaticity, often being less stable due to their electronic structure.

Nitrophenol

An organic compound consisting of a phenol group in which one of the hydrogen atoms is replaced by a nitro group (-NO2).