The IUPAC name of HOCH2-CH2-CH(CH3)-CH=CH2 is:

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The IUPAC name of $HOCH X_{2} - CH X_{2} - CH (CH X_{3}) - CH = CH X_{2}$ is:

A1-hydroxy-3-methylpent-4-ene
B3-methylpent-1-en-5-ol
C3-methylpent-4-en-1-ol
D3-ethenylbutan-1-ol

Answer: C

The longest chain containing the OH has five carbons. The OH takes the lowest locant, so C-1 is the CH2OH carbon, which puts the double bond at C-4 and the methyl at C-3. The name is 3-methylpent-4-en-1-ol.

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The IUPAC name of HOCHX2​−CHX2​−CH(CHX3​)−CH=CHX2​ is:

Answer: C

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The IUPAC name of $HOCH X_{2} - CH X_{2} - CH (CH X_{3}) - CH = CH X_{2}$ is: