Which of the following is the correct definition of a homologous series?

Correct option is D

​Correct option : (d),   A series of compounds having the same functional group and similar chemical properties.

• A homologous series refers to a group of organic compounds that share a similar general formula and exhibit similar chemical properties, with each successive member differing by a CH₂ group (methylene group) in their molecular structure.

Information Booster: 

• Successive members differ by a CH₂ group in their molecular formula.
  
• Show a gradual change in physical properties (such as boiling points, melting points, etc.) as the number of carbon atoms increases.
  
• Have similar chemical properties.
  

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