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Chemistry · 2026 · 4 marks
Classification of Elements and Periodicity in PropertiesPeriodic trends in ionization enthalpy4 marks
NEET 2026 · 21 June · Code 50 · Q70
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: The first ionization enthalpy of O…
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The first ionization enthalpy of O is lower than that of N and F.
Reason R : The loss of an electron from O leads to stable half-filled $\displaystyle p$ orbital.
In light of the above statements, choose the most appropriate answer from the options given below:
Official answer
From NTA’s final answer key for this paper.
(1)
Both A and R are correct and R is the correct explanation of A.
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