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Carbon and its Compounds — Science STD 10 — Question

Maharashtra BoardEnglish MediumSTD 10ScienceCarbon and its Compounds3 Marks
Question
What is a homologous series? Explain with an example.
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Answer

Homologous series is a group of organic compounds having similar structures and similar chemical properties in which the successive compounds differ by $CH2$ group.
Example of Homologous series: All the alkanes have similar structures with single covalent bonds and show similar chemical properties, so they can be grouped together in the form of a homologous series.
Homologous series of alkanes: Methane$- CH_{4}$, Ethane$- C_2H_{6}$, Propane$- C_3H_{8}$ , Butane$- C_4H_{10}$, Pentane$- C_5H_{12}$.

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