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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Create Free Account Log inThis is a free HSC HSC Chemistry practice question worth 2 marks, testing your understanding of Construct models. It falls under Hydrocarbons in Module 7: Module 7: Organic Chemistry. Submit your answer above to receive instant AI-powered marking and personalised feedback.
Students focus on the principles and applications of chemical synthesis in the field of organic chemistry. Current and future applications of chemistry include techniques to synthesise new substances – including pharmaceuticals, fuels and polymers – to meet the needs of society. Each class of organic compounds displays characteristic chemical properties and undergoes specific reactions based on the functional groups present. These reactions, including acid/base and oxidation reactions, are used to identify the class of an organic compound. In this module, students investigate the many classes of organic compounds and their characteristic chemical reactions. By considering the primary, secondary and tertiary structures of organic materials, students are provided with opportunities to gain an understanding of the properties of materials – including strength, density and biodegradability – and relate these to proteins, carbohydrates and synthetic polymers.
Inquiry question: How can hydrocarbons be classified based on their structure and reactivity?
construct models, identify the functional group, and write structural and molecular formulae for homologous series of organic chemical compounds, up to C8 (ACSCH035) : - alkanes - alkenes - alkynes
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