A-LevelChemistryHydrocarbonsFeb/Mar 2017Paper 1 Q211 Mark
Kerosene is used as an aircraft fuel. Q is one of the molecules in kerosene and has the skeletal formula shown. [Figure showing skeletal formula of Q, which is 2,3-dimethylbutane]. Other structural isomers of this molecule are also found in kerosene. Which structure is a structural isomer of Q?
A[Skeletal structure of 2-methylpentane]
B[Skeletal structure of 3-methylpentane]
C[Skeletal structure of hexane]
D[Skeletal structure of 2,2-dimethylbutane]
✓ Correct Answer
The correct answer is D. 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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