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

  • question_answer
    Which of the following has highest first ionization energy [MP PET 1994]

    A) Sulphur

    B) Oxygen

    C) Nitrogen

    D) Phosphorus

    Correct Answer: C

    Solution :

    Due to stable half-filled orbitals.


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