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प्रश्न
Succeeding members of a homologous series differ by ______.
पर्याय
CH
CH2
CH3
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उत्तर
Succeeding members of a homologous series differ by CH2.
Explanation:
In a homologous series, each successive member differs from the previous one by a CH2 (methylene) group. This consistent difference maintains similar chemical properties while increasing molecular mass in a predictable pattern.
संबंधित प्रश्न
What is the difference between two consecutive homologues:
(1) in terms of molecular mass?
(2) in terms of number and kind of atoms per molecule?
What is a homologous series? Explain with an example.
What is the difference in the molecular formula of any two adjacent homologues in terms of molecular mass?
Copy and complete the following table, which relates to the three homologous series of hydrocarbons:
| General formula | CnH2n | CnH2n-2 | CnH2n+2 |
| IUPAC name of the homologus series | |||
| Characteristic bond type | Single bonds | ||
| IUPAC name of the first member of the series | |||
| Type of reaction with chlorine | Addition |
The general molecular formula for the homologous series of alkynes is _______.
There are different general molecular formula for all members of the homologous series.
Observe the structural formula and answer the following questions.

- Write the name of the given hydrocarbon.
- The given hydrocarbon is included in which type of hydrocarbon?
- What is the kind of compounds with the above characteristic structure called?
What is called homologous series? Give any three of its characteristics?
Which of the following does not belong to the same homologous series?
Consider the carbon compounds having following molecular formula:
(i) C2H2 (ii) C2H5 (iii) C3H7OH (iv) C2H6COOH (v) CH3CHO
- Identify which one of the above compounds, is a member of aldehyde series.
- Write the general formula of the series to which compound C2H2 belongs.
- Which one of the above compounds has triple bonds between carbon-carbon atoms?
- Write the molecular formula of the first member of the homologous series to which the compound C3H7OH belongs.
