Q
Compounds C2H6 and C3H8 are differ by ________ unit and belong to ________ series.
RRB Group D, 18-Aug-22 S-3
2022
✓ Answer:
D
CH2, homologous
Compounds C2H6 (ethane) and C3H8 (propane) differ by a CH2 unit and belong to a homologous series. A homologous series consists of compounds that share the same functional group and have similar chemical properties. Each successive member of the series differs by a CH2 unit, as seen in these alkanes.