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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
    Which one of the following is an s - block element [MP PMT 1999]

    A) Aluminium

    B) Chromium

    C) Niobium

    D) Potassium

    Correct Answer: D

    Solution :

      Potassium, \[K-\left[ Ar \right]\,4{{s}^{1}}\].


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