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Periodic Table and Periodicity question

2001 · Q100
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Periodic Table and Periodicity question

2001 · Q100

NEETChemistryPeriodic Table and PeriodicityMCQ+4 / −1
Correct order of 1st ionization potential among following elements Be, B, C, N, O is
  1. A
    B < Be < C < O < N
  2. B
    B < Be < C < N < O
  3. C
    Be < B < C < N < O
  4. D
    Be < B < C < O < N
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