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Periodic Table and Periodicity question

2022 · 29 Jul · Shift 1 · Q3
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Periodic Table and Periodicity question

2022 · 29 Jul · Shift 1 · Q3

JEE MainChemistryPeriodic Table and PeriodicityMCQ+4 / −1
The first ionization enthalpy of Na, Mg and Si, respectively, are : 496, 737 and 786 kJ mol−1786 \mathrm{~kJ} \mathrm{~mol}^{-1}786 kJ mol−1. The first ionization enthalpy (kJ mol−1\mathrm{kJ} \,\mathrm{mol}^{-1}kJmol−1) of Al\mathrm{Al}Al is :
  1. A
    487
  2. B
    768
  3. C
    577
  4. D
    856
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