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jee_main_2025_24_jan_evening - Classification of Elements and Periodicity in Properties Topics

Master these core formulas and structures to solve almost any past paper question.

Sample Questions in this Chapter

QUESTION #40 Ionization Enthalpy Trends
Given below are two statements: Statement (I) : The first ionization energy of Pb is greater than that of Sn Statement (II) : The first ionization energy of Ge is greater than that of Si. In the light of the above statements, choose the correct answer from the options given below :
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QUESTION #45 Ionization Enthalpy
The successive 5 ionisation energies of an element are 800, 2427, 3658, 25024 and 32824 kJ/mol, respectively. By using the above values predict the group in which the above element is present:
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