Naming organic compounds

1 mark · Normal

Which of the following is the correct IUPAC name for the compound with the formula CH3CH2CH2CH=CH2?

ApenteneB1-penteneC2-penteneDpentane

› Show answer

Correct option: 1-pentene

Common mistakes: pentene; 2-pentene; pentane

› Show mark scheme and worked solution

Marking points

B1 · 1 mark · Correct option selected: 1-pentene.

Worked solution

CH3CH2CH2CH=CH2 has five carbons in a chain with a double bond at the first carbon, so it is 1-pentene.

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