Answer:
A. An organic compound will contain carbon and hydrogen atoms.
Step-by-step explanation:
An organic compound is a chemical compound that contains carbon and hydrogen atoms. Organic compounds are found in all living things, and they are also used in a variety of products, such as plastics, fuels, and medicines.
The other options are incorrect:
- (B) Helium is a noble gas, and it does not form chemical bonds with other elements.
- (C) Sodium is a metal, and it does not form chemical bonds with carbon.
- (D) Chlorine is a halogen, and it can form chemical bonds with carbon, but it is not required for an organic compound.
Therefore, the correct answer is A. An organic compound will contain carbon and hydrogen atoms.
Note: There are a few exceptions to the rule that all organic compounds contain carbon and hydrogen. For example, carbon dioxide and carbon monoxide are considered to be inorganic compounds.