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JEE Main & Advanced Chemistry Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति Question Bank Valency and oxidation state

  • question_answer
    An ion which has 18 electrons in the outermost shell is

    A) \[{{K}^{+}}\]

    B) \[C{{a}^{2+}}\]

    C) \[N{{a}^{+}}\]

    D) \[C{{u}^{+}}\]

    Correct Answer: D

    Solution :

    Not Available


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