NEET Chemistry Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति NEET PYQ-Classification Elements In Properties

  • question_answer
      For the second period elements the correct increasing order of first ionization enthalpy is-          [NEET 2019]

    A)  Li < B < Be < C < N < O < F < Ne

    B)  Li < Be < B < C < O < N < F < Ne

    C)  Li < Be < B < C < N < O < F < Ne

    D)  Li < B < Be < C < O < N < F < Ne

    Correct Answer: D

    Solution :

    [d] Order of IE
    I.E of Be > B
    I.E of N > O
    \[\therefore \] Li < B ≤ Be < C < O ≤ N < F < F < < Ne


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