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Haryana PMT Haryana PMT Solved Paper-2002

  • question_answer
    Which of the following element exhibit maximum valency?

    A)  \[Cu\]                                 

    B)  \[Os\]   

    C)  \[Pt\]                                  

    D)  \[Cs\]

    Correct Answer: B

    Solution :

                    Os has highest valency of \[(+8)\] in \[Os{{O}_{4}}\]


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