Read the following statements carefully and choose the correct option. Statement 1: Members of a homologous series differ by a -CH2- group. Statement 2: Each successive member of a homologous series differs from the previous one by 12 u in molecular mass.

A homologous series is a group of organic compounds with the same functional group where each successive member differs by exactly one carbon and two hydrogen atoms, represented as a -CH2 group. The difference in molecular mass between successive members is actually 14 u, calculated from the atomic mass of one carbon and two hydrogen atoms. As the molecular mass increases within a homologous series, physical properties like boiling point and melting point show a regular increase due to stronger intermolecular forces. All members of a specific series exhibit similar chemical properties because they possess the same functional group.