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Periodic Table and Periodicity question

2022 · Q122
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Periodic Table and Periodicity question

2022 · Q122

NEETChemistryPeriodic Table and PeriodicityMCQ+4 / −1

If first ionization enthalpies of elements X and Y are 419 kJ mol−-−1 and 590 kJ mol−-−1, respectively and second ionization enthalpies of X and Y are 3069 kJ mol−-−1 and 1145 kJ mol−-−1, respectively. Then correct statement is :

  1. A
    Both X and Y are alkaline earth metals
  2. B
    X is an alkali metal and Y is an alkaline earth metal
  3. C
    X is an alkaline earth metal and Y is an alkali metal
  4. D
    Both X and Y are alkali metals
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