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UPSC Chemistry Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति Question Bank Elements Classification and Chemical Bonding

  • question_answer
          Which one of the following is a diagonally related pair?

    A) H, Be                 

    B)        Na, Mg

    C) B, Si           

    D) K, Ca

    Correct Answer: C

    Solution :

    Not Available       


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