NEET 2019 Physics and Chemistry

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Question : 12 of 90

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For the second period elements the correct increasing order of first ionisation enthalpy is:

[NEET 2019]

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

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