What is the IUPAC name for CH3-CH2-OH?

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Multiple Choice

What is the IUPAC name for CH3-CH2-OH?

Explanation:
Alcohol naming uses the longest carbon chain that contains the hydroxyl group and the -ol suffix. For CH3-CH2-OH, the chain has two carbons, so the base name is eth- and the hydroxyl group gives the -ol ending, yielding ethanol. The common name "ethyl alcohol" exists, but the preferred IUPAC name is ethanol. "Ethanal" would be the aldehyde with a carbonyl group (CH3-CHO), not this alcohol. "Ethyl hydroxide" isn’t the standard IUPAC way to name this neutral alcohol.

Alcohol naming uses the longest carbon chain that contains the hydroxyl group and the -ol suffix. For CH3-CH2-OH, the chain has two carbons, so the base name is eth- and the hydroxyl group gives the -ol ending, yielding ethanol. The common name "ethyl alcohol" exists, but the preferred IUPAC name is ethanol. "Ethanal" would be the aldehyde with a carbonyl group (CH3-CHO), not this alcohol. "Ethyl hydroxide" isn’t the standard IUPAC way to name this neutral alcohol.

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