Which one of the following statements is incorrect, in case of homologous series of alkanes,

Options

A. The members of the series are isomers of each other
B. The members of the series have similar chemical properties
C. The members of the series have the general formula `C_(n)H_(2n+2)`, where n is an integer
D. The difference between any two successive members of the series corresponds to 14 unit of relative atomic mass

Answer

To determine which statement is incorrect regarding the homologous series of alkanes, we need to analyze the properties and characteristics of alkanes.

### Step-by-Step Solution:

1. **Understanding Homologous Series**:
- A homologous series is a group of organic compounds that have the same functional group and similar chemical properties but differ by a constant unit, typically a -CH2- group.
- For alkanes, the general formula is CnH2n+2, where n is the number of carbon atoms.

2. **Isomerism**:
- Isomers are compounds that have the same molecular formula but different structural formulas.
- In the case of alkanes, as the number of carbon atoms increases, the possibility of isomerism also increases. However, for the first few alkanes (like methane, ethane), there are no isomers.

3. **Chemical Properties**:
- Alkanes have similar chemical properties because they are all saturated hydrocarbons. They undergo similar types of reactions, such as combustion and substitution reactions.

4. **General Chemical Formula**:
- The general formula for alkanes is indeed CnH2n+2. For example, for n=1 (methane, CH4), n=2 (ethane, C2H6), and so on.

5. **Difference in Molecular Mass**:
- The difference in molecular mass between two consecutive alkanes is indeed 14 g/mol (for -CH2- addition). This is because each additional carbon (C) adds 12 g/mol and each additional hydrogen (H) adds 1 g/mol, leading to a total increase of 14 g/mol.

6. **Identifying the Incorrect Statement**:
- Based on the analysis, if there is a statement that claims that alkanes can have isomers at lower carbon counts (like C1 or C2), or that they do not share similar chemical properties, that statement would be incorrect.

### Conclusion:
After analyzing the properties and characteristics of alkanes, the incorrect statement is likely one that misrepresents the isomerism or chemical properties of alkanes.