2020 - Q13
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Which of the following conversions results in the formation of a different shape around the carbon atom?
A. Methanoic acid to methanal
B. Methanoic acid to methanol
C. Methanoic acid to methanamide
D. Methanoic acid to sodium methanoate
2023 - Q1
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What is the safest method for disposing of a liquid hydrocarbon after an experiment?
A. Pour it down the sink
B. Place it in a garbage bin
C. Burn it by igniting with a match
D. Place it in a separate waste container
2023 - Q10
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2021 - Q21 (6 marks)
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Four organic liquids are used in an experiment. The four liquids are
• hexane
• hex-1-ene
• propan-1-ol
• propanoic acid.
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(a) State ONE safety concern associated with organic liquids and suggest ONE way to address this safety concern. (2 marks)
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(b) The organic liquids are held separately in four flasks but the flasks are not labelled. Tests were conducted to identify these liquids. The outcomes of the tests are summarised below. (2 marks)
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(c) What chemical test, other than those used in part (b), could be used to confirm the identification of ONE of the liquids? Include the expected observation in your answer. (2 marks)
2022 - Q24 (3 marks)
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The following graph shows the boiling points of some 1- chloroalkanes.
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Explain the trend shown in the graph.
