page 09 20. The reaction of butanone with lithium aluminium hydride produces A butanoic acid B butan-2-ol C butan-1-ol D butanal. 21. NO2 NH2 NHCOCH3 step 1 step 2 step 3 benzene nitrobenzene phenylamine N-phenylethanamide Which line in the table is correct for the types of reaction taking place at steps 1, 2 and 3? Step 1 Step 2 Step 3 A addition reduction condensation B electrophilic substitution nucleophilic substitution neutralisation C electrophilic substitution reduction condensation D addition nucleophilic substitution neutralisation 22. Carboxylic acids can be prepared in different ways. Which of the following is a suitable method for preparing a carboxylic acid in one reaction? A Addition to an alkene B Hydrolysis of a nitrile C Reduction of an aldehyde D Substitution of a haloalkane [Turn over