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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
          The elements of a group in the periodic tabic [CDS]

    A) have similar chemical properties

    B) have consecutive atomic numbers

    C) are isobars

    D) are isotopes

    Correct Answer: A

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