Name this molecule: C3H7OH

Name this molecule: C3H7OH

• A. Propanone
• B. Propan-1-ol
• C. Propanal
• D. Propanol

Answer: (D)

Alcohols are named by identifying the longest carbon chain that contains the -OH group and adding the -ol suffix. With three carbons in the chain, the base name is propane, and the -ol suffix indicates an alcohol, giving propanol. The formula C3H7OH confirms it’s an alcohol with three carbons. If you know exactly where the OH is, you’d specify propan-1-ol for a terminal OH or propan-2-ol for an OH on the middle carbon, but the general name for this three-carbon alcohol is propanol. The other options describe different functional groups (a ketone and an aldehyde) and would have different names and properties, so they don’t match this formula.

Alcohols are named by identifying the longest carbon chain that contains the -OH group and adding the -ol suffix. With three carbons in the chain, the base name is propane, and the -ol suffix indicates an alcohol, giving propanol. The formula C3H7OH confirms it’s an alcohol with three carbons. If you know exactly where the OH is, you’d specify propan-1-ol for a terminal OH or propan-2-ol for an OH on the middle carbon, but the general name for this three-carbon alcohol is propanol. The other options describe different functional groups (a ketone and an aldehyde) and would have different names and properties, so they don’t match this formula.