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JEE Main & Advanced Chemistry The p-block Elements-II / p-ब्लॉक तत्व-II Question Bank Self Evaluation Test - The p-Block Elements (Group 13 and Group 14)

  • question_answer
    The catenation tendency of C, Si and Ge is in the order \[Ge<Si<C.\] The bond energies (in\[kJmo{{l}^{-1}}\]) of \[C-C,\] \[Si-Si\] and \[Ge-Ge\] bonds are respectively           

    A) 348, 297, 260     

    B) 297, 348, 260

    C) 348, 260, 297     

    D) 260, 297, 348

    Correct Answer: A

    Solution :

    [a] The linking of identical atoms with each other to form long chains is called catenation. However, this property decreases from carbon to lead. Decrease of this property is associated with M-M bond energy which decreases from carbon to lead.


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