The IUPAC name of CH3-CH=CH-CH2-OH is:

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The IUPAC name of $CH X_{3} - CH = CH - CH X_{2} - OH$ is:

A1-hydroxybut-2-ene
Bbut-3-en-1-ol
Cbut-2-en-1-ol
Dbut-2-en-4-ol

Answer: C

The alcohol is the principal group and gets the lowest locant, so C-1 is the CH2OH carbon. The double bond then lies between C-2 and C-3. The name is but-2-en-1-ol.

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The IUPAC name of CHX3​−CH=CH−CHX2​−OH is:

Answer: C

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The IUPAC name of $CH X_{3} - CH = CH - CH X_{2} - OH$ is: