A-LevelChemistryOrganic synthesisMay/June 2012Paper 1 Q261 Mark
Complete combustion of compound X gives carbon dioxide and water only. A sample of X is mixed with aqueous potassium(V) dichromate and boiled under reflux for one hour. The mixture is then distilled and the only organic substance present is collected. The organic substance collected reacts with sodium to give hydrogen, but does not react with 2,4-dinitrophenylhydrazine reagent and does not react with ethanol in the presence of concentrated sulfuric acid to give an ester. What can be deduced from this information?
AX is a carboxylic acid.
BX is a ketone.
CX is an alcohol.
DX is an alkane.
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The correct answer is C. This question tests the candidate's understanding of organic synthesis within the Chemistrysyllabus. The examiner's mark scheme requires...
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