What is homologous series? Explain with an example.
What is homologous series? Explain with an example.
A homologous series is a group or a class of organic compounds having the same general molecular formula and similar chemical properties in which the successive members differ by a CH2 group.
Properties of Homologous Series
1. Each member of the series differs from the preceding or succeeding member by a common difference of CH2 and by a molecular mass of 14 amu. (amu = atomic mass unit).
2. All members of each homologous series contain same elements and same functional groups.
3. All members of each homologous series have the same general molecular formula.
Alkane = CnH2n+2
Alkene = CnH2n
Alkyne = CnH2n−2
4. The members in each homologous series show a regular gradation in their physical properties with respect to increase in molecular mass.
5. The chemical properties of the members of each homologous series are similar.
6. All members of each homologous series can be prepared by using same general method.
A homologous series is a group or a class of organic compounds having the same general molecular formula and similar chemical properties in which the successive members differ by a CH2 group.
Properties of Homologous Series
1. Each member of the series differs from the preceding or succeeding member by a common difference of CH2 and by a molecular mass of 14 amu. (amu = atomic mass unit).
2. All members of each homologous series contain same elements and same functional groups.
3. All members of each homologous series have the same general molecular formula.
Alkane = CnH2n+2
Alkene = CnH2n
Alkyne = CnH2n−2
4. The members in each homologous series show a regular gradation in their physical properties with respect to increase in molecular mass.
5. The chemical properties of the members of each homologous series are similar.
6. All members of each homologous series can be prepared by using same general method.
