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JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2007

  • question_answer
        Beryllium and aluminium exhibit many properties which are similar. But, the two elements differ in

    A)  exhibiting maximum covalency in compounds

    B)  forming polymeric hydrides

    C)  forming covalent halides

    D)  exhibiting amphoteric nature in their oxides

    Correct Answer: A

    Solution :

                    \[Be(Z=4)\]has maximum covalency of 4 while \[Al(Z=13)\]has maximum covalency of 6.


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