Unsaturated hydrocarbons
1 mark · NormalWhich of the following is a possible isomer of butene (C4H8)?
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Correct option: All of the above
Common mistakes: Selecting only one isomer instead of all possibilities
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Marking points
B1 · 1 mark · Selects 'All of the above' as the correct answer.
Worked solution
The isomers are: but-1-ene (CH3CH2CH=CH2), but-2-ene (CH3CH=CHCH3), and a branched isomer (CH2=C(CH3)2). All are valid isomers of C4H8.