A-LevelChemistryAnalytical techniquesOct/Nov 2022Paper 1 Q401 Mark
A molecule of an organic compound, P, contains three carbon atoms and shows a strong absorption at 1720 cm⁻¹ in its infrared spectrum. P is reacted with an excess of hot acidified potassium dichromate(VI) forming organic product Q. Q shows a strong absorption at 1700 cm⁻¹ and a strong, broad absorption centred at 2800 cm⁻¹ in its infrared spectrum. [Table 40.1: Bond, functional group, characteristic infrared absorption range]
Apropanal
Bpropanone
Cpropan-1-ol
Dpropan-2-ol
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The correct answer is A. This question tests the candidate's understanding of analytical techniques within the Chemistrysyllabus. The examiner's mark scheme requires...
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