Which element must be present for a compound to be classified as an organic compound?

• A. $\mathrm{Hydrogen}$
• B. $\mathrm{Nitrogen}$
• C. $\mathrm{Carbon}$
• D. $\mathrm{Oxygen}$

Answer: (C)

Verified step by step guidance

1. Understand the definition of an organic compound: Organic compounds are primarily composed of carbon atoms bonded to hydrogen, oxygen, nitrogen, and other elements.
2. Recognize the role of carbon: Carbon is the central element in organic chemistry due to its ability to form stable covalent bonds with many elements, including itself, allowing for the formation of complex structures.
3. Identify the key element: For a compound to be classified as organic, it must contain carbon. This is because carbon's unique bonding properties are essential for the structure and function of organic molecules.
4. Consider the presence of other elements: While hydrogen, nitrogen, and oxygen are commonly found in organic compounds, they are not required for a compound to be classified as organic. The presence of carbon is the defining factor.
5. Reflect on examples: Familiarize yourself with examples of organic compounds, such as hydrocarbons, alcohols, and amino acids, all of which contain carbon as a fundamental component.