A student makes three statements about alcohols.
Statement 1: a solution of ethanol in water is alkaline because ethanol contains an −OH\mathrm{-OH}−OH group
Statement 2: the molecular formula of butan-1-ol can be written as C4H10O\mathrm{C_{4}H_{10}O}C4H10O
Statement 3: methanol can be dehydrated to form an alkene
Which statements are correct?
2 only
1 and 2 only
2 and 3 only
1, 2 and 3
43 exam-style questions on Edexcel GCSE Chemistry 10.4 Alcohols and carboxylic acids, covering 10.4.1 Alcohols and the -OH functional group, 10.4.2 Carboxylic acids and the -COOH functional group, 10.4.3 Oxidation of alcohols and homologous series, and 10.4.4 Fermentation and fractional distillation of ethanol. Each one has a worked solution and a mark scheme showing where the marks go.