The first ionization enthalpy of Na, Mg and Si, respectively, are : 496, 737 and 786 kJ mol. The first ionization enthalpy (kJ mol) of Al is :
← JEE Main 2022 · 29 Jul · Shift 1
ChemistrySingle correct+4 / -1Question 64 of 90
JEE Main 2022 · 29 Jul · Shift 1, Chemistry question 64
Answer and worked solution
Official answer: C
Trend. Al removes a 3p electron, which is easier than Mg's 3s; its value, 577 kJ/mol, lies between Na and Mg.
(C)
Topics:Ionisation enthalpy