JEE Main & Advanced Chemistry Hydrocarbons / हाइड्रोकार्बन Question Bank Alkene

  • question_answer
    Cyclic hydrocarbon molecule A has all the carbon and hydrogens in a single plane. All the carbon-carbon bonds are of same length and less that 1.54 Å but more than 1.34 Å. \[C-C-C\] bond angle will be [CBSE PMT 1989]

    A) \[{{120}^{o}}\]

    B) \[{{180}^{o}}\]

    C) \[{{100}^{o}}\]

    D) \[{{109}^{o}}2{8}'\]

    Correct Answer: A

    Solution :

    Cyclic hydrocarbon in which all the carbon atoms are present in the same plane is benzene. In this \[C-C\] bond length is 1.39Å which is more than 1.34Ao but less than 1.54Å. Hence bond angle is \[{{120}^{o}}\] with \[s{{p}^{2}}\] hybridization.


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