Home Chemistry Classification of Elements and Periodicity JEE Main 2021 The CORRECT order of first ionisation enthal…
Chemistry Classification of Elements and Periodicity JEE Main 2021 Single Correct MCQ
Published on: August 13, 2026

The CORRECT order of first ionisation enthalpy is :

A
Mg < S < Al < P
B
Mg < Al < S < P
C
Al < Mg < S < P
D
Mg < Al < P < S

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The correct answer is:
A

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