Multiple choice

Hydrocarbon contains

  1. carbon and hydrogen

  2. carbon and oxygen

  3. carbon and nitrogen

  4. carbon and carbon dioxide
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A Correct answer
Explanation

By definition, hydrocarbons are organic compounds consisting ONLY of carbon and hydrogen atoms. This is a fundamental concept in organic chemistry - the prefix 'hydro-' refers to hydrogen, and '-carbon' refers to carbon. Oxygen, nitrogen, and carbon dioxide are not part of pure hydrocarbons.

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