A-level Chemistry/OCR (Salters)/Open-Book Paper

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How to create diagrams

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Diagrams are invaluable for conveying precise chemical information without encroaching on the word count. For two-dimensional diagrams such as skeletal formulae or flow charts, a molecule editor is your best bet.

For images of three-dimensional molecules, use molecular graphics software, such as Accelrys DS Visualizer, a free downloadable application for Windows. A tutorial on how to use DS Visualizer is available here.

2001

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Article 1: From Accident to Design: the progress of poly(ethene)

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  • Discovery of poly(ethene)
  • Development of industrial production of poly(ethene)
  • Discovery of Ziegler-Natta catalysts

Article 2: Shaping up: the story of poly(propene)

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Exemplar response

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An exemplar response to the 2001 open paper exam is available here.

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