Alcohol reactions 0.0 / 5 ? ChemistryReactionsASEdexcel Created by: ZoharCreated on: 15-03-15 20:40 Alcohol combustion reaction produces.. CO2 and H2O 1 of 10 First oxidation of a primary alcohol heat with potassium dichromate (K2Cr2O7) and H2SO4: turns from orange to green + produces H2O + aldehyde eg ethanal CH3CHO 2 of 10 second oxidation of primary alcohol heat under reflux with K2Cr2O7 and H2SO4 produces carboxylic acid + H2O eg ethanoic acid CH3COOH 3 of 10 oxidation of secondary alcohol heat under reflux with K2Cr2O7 and H2SO4 produces ketone eg propanone CH3COCH3 4 of 10 reaction of alcohol(C2H5OH) with sodium produces 0.5H2 + sodium ethoxide C2H5O-Na+ 5 of 10 test for an OH group (on CH3OH)/halogenation add PCl5 -> CH3Cl + POCl3 + HCl (test steamy fumes with damp blue litmus turns red) 6 of 10 what colour are tertiary alcohols under oxidising agents Stay orange, dont react 7 of 10 alcohol bromination reaction when heated under reflux with KBr and 50%H2SO4 KBr + H2SO4 -> KHSO4 + HBr then CH3CH2OH + HBr -> CH3CH2Br + H2O 8 of 10 Iodination when alcohol warmed with iodine 2P (moist red) + 3I2 -> 2PI3 then 3CH3CH2OH + PI3 -> 3CH3CH2I + H3PO3 9 of 10 What is the melting/boiling point of alcohols? higher than alkanes bc H bonding, not just London forces 10 of 10
Basic concepts and hydrocarbons, Alcohols, Halogenoalkanes and analysis, Energy 1.0 / 5 based on 2 ratings
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