Question

Is this series saturated or unsaturated? (CnH2n+2 is the general formula of a homologous series of hydrocarbons.)

Answer 1

Series of compounds with the same general formula is known as homologous series. CnH2n+2 are a formula of alkanes and this is saturated hydrocarbons.

Here all carbon atoms are bonded with the hydrogen atoms and this is a saturated formula of alkenes. Carbon to carbon bonds made this formal homologous saturated.

If they are double bonded then they can classified as unsaturated because the formal of double bonded alkanes are DoU = (2C + 2 + N - X - H)/2.

Even carbon chains are also called saturated homologous series because here you can find some bonded carbon atoms or hydrogen atoms during the formulation.