31Organic Nomenclature FormulaeEasy1 markWhich statement about members of the carboxylic acid homologous series is correct?AThey have the same empirical formula and similar chemical properties.BThey have the same empirical formula and their displayed formula differs by a –CH2– unit.CThey have the same functional group and the same physical properties.DThey have the same functional group and similar chemical properties.Grade answerGrading criteria