A-LevelChemistryHydrocarbonsMay/June 2011Paper 1 Q231 Mark
The products obtained by cracking an alkane, X, are methane, ethene and propene. The mole fraction of ethene in the products is 0.5. What is the identity of X?
AC6H14
BC8H18
CC9H20
DC11H24
✓ 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...
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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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