Chemistry · 2020
JEE Main · 8 January 2020, Shift 1 · Q32
The first ionization energy (in kJ / mol ) of Na, Mg, Al and Si respectively, are:
The first ionization energy (in $\displaystyle \mathrm{kJ} / \mathrm{mol}$ ) of Na, Mg, Al and Si respectively, are :
Official answer
(3)
$\displaystyle 496, 737, 577, 786$
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JEE Main 2020 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.