A-LevelChemistryHydroxy compoundsOct/Nov 2022Paper 1 Q331 Mark
1.0 mol of an organic compound, J, requires 6.0 mol of oxygen for complete combustion. 1.0 mol of J reacts with sodium, producing 0.50 mol of a gas that gives a 'pop' with a lighted splint. J reacts with an excess of hot acidified potassium manganate(VII) to produce an organic compound which gives an orange-red precipitate with 2,4-DNPH reagent. Which compound is J?
Abut-1-ene
Bbutan-2-ol
Cpropan-2-ol
D2-methylpropan-2-ol
✓ Correct Answer
The correct answer is B. This question tests the candidate's understanding of hydroxy compounds 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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