A-LevelChemistryHydrocarbonsMay/June 2012Paper 1 Q231 Mark
Isomers X and Y both react with HBr. [Figure 23.1] A mixture of X and Y is reacted with HBr. Which three structures represent three different possible products of this reaction?
A(CH3)2CHCBr3 (CH3)2CBrCHBr2 CH3CHBrCHBrCH3
B(CH3)2CHCBr3 (CH3)2CBrCHBr2 CH3CBr2CHBrCH3
C(CH3)2CBrCBr3 (CH3)2CHCBr3 CH3CBr2CHBrCH3
D(CH3)2CBrCHBr2 CHBr2CBr(CH3)CH3 CH3CHBrCBr2CH3
✓ Correct Answer
The correct answer is B. This question tests the candidate's understanding of hydrocarbons within the Chemistrysyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
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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