A-LevelChemistryHydrocarbonsMay/June 2020Paper 1 Q301 Mark
The diagram shows the structure of buta-1,3-diene. [Diagram of buta-1,3-diene structure] The addition reaction between buta-1,3-diene and two molecules of hydrogen bromide can produce three structurally isomeric products. How many of these products have at least one chiral centre?
A0
B1
C2
D3
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The correct answer is C. This question tests the candidate's understanding of hydrocarbons within the Chemistrysyllabus. The examiner's mark scheme requires...
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Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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