The suffix -ol in IUPAC nomenclature indicates which functional group?

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Multiple Choice

The suffix -ol in IUPAC nomenclature indicates which functional group?

Explanation:
The -ol ending signals an alcohol group in IUPAC naming. It means the molecule has a hydroxyl group (-OH) attached to the carbon chain, making it an alcohol. That’s why names of alcohols end in -ol, as in ethanol for CH3CH2OH. Other functional groups have different suffixes: -al for aldehydes, -one for ketones, and -oic acid for carboxylic acids. If there are multiple hydroxyls, you might see diol or polyol, but the key idea is that -ol indicates an alcohol.

The -ol ending signals an alcohol group in IUPAC naming. It means the molecule has a hydroxyl group (-OH) attached to the carbon chain, making it an alcohol. That’s why names of alcohols end in -ol, as in ethanol for CH3CH2OH. Other functional groups have different suffixes: -al for aldehydes, -one for ketones, and -oic acid for carboxylic acids. If there are multiple hydroxyls, you might see diol or polyol, but the key idea is that -ol indicates an alcohol.

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