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    Which of the following forms a set of homologous series?
    Question

    Which of the following forms a set of homologous series?

    A.

    Ethane, methane and ethyne

    B.

    Ethyne, propyne and butyne

    C.

    Ethyne, propyne and butene

    D.

    Ethane, methane and propene

    Correct option is D


    Methane, ethane, and propane are said to form a homologous series because they all differ from each other by a -CH2 group. They have similar chemical properties and different physical properties.

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