C₃ H₆ belongs to the homologous series of:

Correct option is B

The correct option is (B) Alkene 

C₃H₆ is part of the alkene homologous series. Alkenes have the general formula CₙH₂ₙ.

• A homologous series is a group of organic compounds with the same functional group and a common general formula.
• Members of a homologous series differ in their molecular formula by a −CH₂− group.
• They share similar chemical properties and can be prepared using similar chemical methods.

Information booster:

Alkane

Alkanes are a group of hydrocarbons with only single bonds between carbon atoms. They follow the general formula CₙH₂ₙ₊₂.

• Properties: Alkanes are non-polar, less reactive, and burn in oxygen to produce carbon dioxide and water.
• Examples: Methane (CH₄), Ethane (C₂H₆), Propane (C₃H₈).
• Uses: Alkanes are used as fuels (e.g., propane in cooking gas) and in the production of chemicals.

Alkanes are also called saturated hydrocarbons because all carbon atoms are fully bonded with hydrogen atoms.

Cycloalkane

Cycloalkanes are hydrocarbons with carbon atoms arranged in a ring structure, and they contain only single bonds. They follow the general formula CₙH₂ₙ.

• Examples: Cyclopropane (C₃H₆), Cyclobutane (C₄H₈), Cyclopentane (C₅H₁₀).
• Properties: Cycloalkanes are non-polar, have higher boiling points than their straight-chain counterparts, and are less reactive than alkenes.
• Uses: Cycloalkanes are used as fuels, solvents, and intermediates in chemical synthesis.

These compounds are also called saturated cyclic hydrocarbons because all bonds between carbon atoms are single.

Alkyne

Alkynes are hydrocarbons that contain at least one triple bond between two carbon atoms. They follow the general formula CₙH₂ₙ₋₂.

• Examples: Ethyne (C₂H₂), Propyne (C₃H₄), Butyne (C₄H₆).
• Properties: Alkynes are unsaturated, reactive, and have higher boiling points compared to alkanes and alkenes of the same size.
• Uses: Alkynes are used in welding (e.g., acetylene), chemical synthesis, and as raw materials for making polymers and other compounds.

The triple bond in alkynes gives them unique chemical properties, making them important in industrial and organic chemistry.

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