GCSE CHEMISTRY Higher Tier Paper 1

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This question is about carbon and its compounds. box Fullerenes are molecules of carbon atoms. The first fullerene to be discovered was Buckminsterfullerene (C60). 0 1 . 1 What shape is a Buckminst... erfullerene molecule? [1 mark] 0 1 . 2 Give one use of a fullerene. [1 mark] Propanone is a compound of carbon, hydrogen and oxygen. Figure 1 shows the dot and cross diagram for a propanone molecule. Figure 13 *03* Turn over ► IB/M/Jun21/8462/1H Do not write outside the 0 1 . 3 Complete Figure 2 to show a propanone molecule. box Use a line to represent each single bond. Use Figure 1. [1 mark] Figure 2 0 1 . 4 Determine the molecular formula of propanone. Use Figure 1. [1 mark] Molecular formula = 0 1 . 5 Propanone is a liquid with a low boiling point. Why does propanone have a low boiling point? [1 mark] Tick () one box. The covalent bonds are strong. The covalent bonds are weak. The intermolecular forces are strong. The intermolecular forces are weak [Show More]

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