alleryStart learning →Organic compounds that contain only the elements carbon and hydrogen are called:
Ahydrocarbons
Balcohols
Cesters
Damines
Answer & Solution
Correct answer: A. hydrocarbons
1. The stem describes molecules built from exactly two elements: carbon and hydrogen.
2. The text states directly: "The simplest organic compounds contain only the elements carbon and hydrogen, and are called hydrocarbons."
3. Alcohols, esters, and amines all additionally contain oxygen or nitrogen atoms, so they do not fit this two-element description.
4. So compounds made only of carbon and hydrogen are called hydrocarbons.
_Source: OpenStax Chemistry Ch 20 "Organic Chemistry", p.1098 §20.1 Hydrocarbons_
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