Question

what is homologous series

Answer 1

homologous series is a series in which two members differ by 14 u or Ch2 group , they have same functional gp or belong to same category .

Answer 2

hello there!!

In chemistry, a homologous series is a series of organic compounds with a similar general formula, possessing similar chemical properties due to the presence of the same functional group, and shows a gradation in physical properties as a result of increase in molecular size and mass (see relative molecular mass). For example, ethane has a higher boiling point than methane since it has more Van der Waals forces (intermolecular forces) with neighbouring molecules. This is due to the increase in the number of atoms making up the molecule. Each organic compound in a homologous series vary by an extra CH2 from the previous compound.

Alkanes (paraffins), alkenes (olefins), ethers, and alkynes (acetylenes) form such series in which members differ in mass by 14 atomic mass units. For example, the alkane homologous series begins with methane (CH4), ethane (C2H6), propane (C3H8), butane (C4H10), and pentane(C5H12), each member differing from the previous one by a CH2 group (or 14 atomic mass units).

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