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  5. Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति

JEE Main & Advanced Chemistry Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति Question Bank Extended or long form of periodic table

  • question_answer
    The most importasnt active step in the development of periodic table was taken by [CPMT 1976]

    A) Mendeleef

    B) Dalton

    C) Avogadro

    D) Cavendish

    Correct Answer: A

    Solution :

    Not Available


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