IGCSE›Cambridge IGCSE Chemistry›Mind mapsNaming Organic CompoundsCambridge IGCSE Chemistry: Mind mapStudy pack PDFAlso for this subtopic:Revision notesFlashcardsSubtopic testCover factsName endings-ane = alkane-ene = alkene-ol = alcohol-oic acid = carboxylic acidPropanol is an alcohol, propene an alkeneCarbon prefixesmeth- = 1 carboneth- = 2 carbonsprop- = 3 carbonsbut- = 4 carbonsGeneral formulaeAlkanes CnH2n+2C_nH_{2n+2}CnH2n+2Alkenes CnH2nC_nH_{2n}CnH2nAlcohols CnH2n+1OHC_nH_{2n+1}OHCnH2n+1OHCarboxylic acids CnH2n+1COOHC_nH_{2n+1}COOHCnH2n+1COOHNamingorganic compounds-ane-ene-olFunctional groupsAlkanes: all single bondsAlkenes: C=C double bondAlcohols: –OH groupCarboxylic acids: –COOH groupNaming starts by finding the functional groupMust drawMethane, ethane, etheneEthanol and ethanoic acidBut-1-ene and but-2-enePropan-1-ol and propan-2-olButan-1-ol and butan-2-olExam tipsNumber shows position of C=C or –OHCheck exactly where the double bond sitsEndings identify the homologous series