Arizona HGN Practice Test 2026 – Complete Exam Preparation

The chemical symbol for beverage alcohol, which is commonly known as ethanol, is represented by the formula C2H5OH. This compound is an alcohol that consists of two carbon atoms, six hydrogen atoms, and one oxygen atom. It is the substance found in alcoholic beverages and is responsible for their intoxicating effects.

Although ETOH is a common shorthand notation used to refer to ethanol, it is not the formal chemical symbol or molecular formula. The notation ETOH reflects a casual or simplified representation of the compound rather than its complete chemical structure. Thus, while ETOH is widely recognized and used informally, the full chemical formula C2H5OH is the most accurate representation for beverage alcohol, clearly indicating its component atoms and providing clarity in chemical contexts.

Methyl alcohol, represented by CH3OH, is structurally different from ethanol, as it contains only one carbon atom, making it significantly more toxic and unsuitable for consumption as a beverage.

In summary, while ETOH is used in casual discussions about alcoholic beverages, C2H5OH is the correct and formal representation of beverage alcohol, crucial for understanding its chemical identity.