CMC Medical CMC-Medical Ludhiana Solved Paper-2007

  • question_answer
    Which of the following has giant co-valent structure?

    A)  \[NaCl\]                             

    B)  \[Si{{O}_{2}}\]

    C)  \[AlC{{l}_{3}}\]                

    D)  \[Pb{{O}_{2}}\]

    Correct Answer: B

    Solution :

                    \[Si{{O}_{2}}\] has a three dimensional network giant co-valent structure in which each Si is \[s{{p}^{3}}\text{-}\]hybridised and is surrounded by  four oxygen atoms arranged tetrahedrally around it, each oxygen is further linked to two Si atoms arranged linearly.


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