A-LevelChemistryIntroduction to organic chemistry9701/12 · Oct/Nov 2018 · Q201 Mark
There are three structural isomers with the formula C5H12. Which formulae correctly represent these three structural isomers?
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ACH3CH2CH2CH2CH3 CH3CH(CH3)CH2CH3 C(CH3)4
BCH3CH2CH2CH2CH3 CH3CH(CH3)CH2CH3 CH3CH2CH(CH3)CH3
C[Diagram showing n-pentane, 2-methylbutane, and 2,2-dimethylpropane]
D[Diagram showing n-pentane, 2-methylbutane, and 2,3-dimethylpropane]
✓ Correct answer
A: CH3CH2CH2CH2CH3 CH3CH(CH3)CH2CH3 C(CH3)4
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