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JEE Main & Advanced JEE Main Paper (Held on 09-4-2019 Afternoon)

  • question_answer
    The structures of beryllium chloride in the solid state and vapour, phase, respectively,are :             [JEE Main 9-4-2019 Afternoon]

    A) chain and dimeric       

    B) chain and chain

    C) dimeric and dimeric

    D) dimeric and chain

    Correct Answer: A

    Solution :

    \[BeC{{l}_{2}}\]exist as \[{{(BeC{{l}_{2}})}_{n}}\]polymeric chain in solid form, while \[BeC{{l}_{2}}\] exist as dimer \[{{(BeC{{l}_{2}})}_{2}}\] in vapour phase.


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