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Homologous series Video Lecture | Crash Course: Class 10

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FAQs on Homologous series Video Lecture - Crash Course: Class 10

1. What is a homologous series?
Ans. A homologous series is a series of organic compounds that have the same functional group and similar chemical properties. They have a similar general formula and differ from each other by a constant increment in molecular structure.
2. What are the characteristics of a homologous series?
Ans. The characteristics of a homologous series include having the same functional group, similar chemical properties, and a constant increment in molecular structure. They also have a similar general formula and exhibit a gradual change in physical properties with an increase in molecular size.
3. What is the importance of studying homologous series?
Ans. Studying homologous series is important because it helps in understanding the relationship between the structure and properties of organic compounds. It allows chemists to make predictions about the properties of new compounds based on the known properties of other members of the series. Additionally, it aids in the classification and systematic naming of organic compounds.
4. How do you identify a compound belonging to a homologous series?
Ans. To identify a compound belonging to a homologous series, one should look for the presence of a common functional group and a similar general formula. The compound should also exhibit similar chemical properties and a gradual change in physical properties with an increase in molecular size.
5. Give an example of a homologous series and explain its members.
Ans. An example of a homologous series is the alkane series. Its members include compounds with the general formula CnH2n+2, where n represents the number of carbon atoms. The first member is methane (CH4), followed by ethane (C2H6), propane (C3H8), butane (C4H10), and so on. Each member differs from the previous one by a CH2 unit, and they all exhibit similar chemical properties and a gradual increase in boiling points with an increase in molecular size.
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