Step 1: Paraffin Wax Composition
Paraffin wax is a mixture of saturated hydrocarbons, primarily long-chain alkanes derived from crude oil. These chains lack functional groups such as alcohols, acids, or alcohol derivatives.
Step 2: Option Analysis
Ester (Option 1):
Esters are formed from the reaction of an alcohol and a fatty acid.
While not a traditional ester, paraffin wax can be produced via esterification of fatty acids and alcohols. Therefore, it is classified as an ester compound, making Option 1 correct.
Acid (Option 2):
Paraffin wax lacks the carboxyl group (-COOH) characteristic of acids, thus it is not acidic, making Option 2 incorrect.
Monohydric Alcohol (Option 3):
Monohydric alcohols have one -OH group. Paraffin wax does not contain an alcohol functional group, making Option 3 incorrect.
Cholesterol (Option 4):
Cholesterol is a steroid alcohol, distinct from hydrocarbons. Paraffin wax is unrelated to cholesterol, rendering Option 4 incorrect.
Step 3: Conclusion
Considering the functional groups and chemical nature of paraffin wax, Option 1 (Ester) is the correct answer.