Chemistry · 2025
JEE Main · 8 April 2025, Shift 2 · Q56
The atomic number of the element from the following with lowest 1^st ionisation enthalpy is:
The atomic number of the element from the following with lowest $\displaystyle 1^{\text {st }}$ ionisation enthalpy is :
Official answer
From NTA’s final answer key for this paper.
(2)
$\displaystyle 87$
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JEE Main 2025 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.