A petroleum fraction is analysed and found to contain a hydrocarbon with eight carbon atoms. The compound is known to be an acyclic (non-ring) hydrocarbon and contains exactly one carbon–carbon multiple bond. A student proposes three possible structures for this compound, shown using condensed structural formulae:
Assume all carbon atoms form four bonds and hydrogen forms one bond.
A student builds a ball-and-stick model for Candidate B. Describe two structural features that must be shown correctly in the model to distinguish Candidate B from Candidate A.
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