NEET UG 2019 · Chemistry · Question 60
NEET 2019 Chemistry, question 60
Question 60 of the NEET 2019 paper (code P1) is a Chemistry question from Classification of Elements and Periodicity in Properties. Its idea, Ionization Enthalpy Trends, was asked 3 times, in 2019, 2024 and 2025, across NEET 2017–2026. The NTA final answer key gives option 2.
Updated 2026-10-08
Q60 · Chemistry
For the second period elements the correct increasing order of first ionisation enthalpy is :
- 1Li < Be < B < C < N < O < F < Ne
- 2Li < B < Be < C < O < N < F < NeOfficial answer
- 3Li < B < Be < C < N < O < F < Ne
- 4Li < Be < B < C < O < N < F < Ne
Official answer: option 2 · NTA final answer key
Same idea
Ionization Enthalpy Trends, in other papers
NEET asked this idea 3 times, in 2019, 2024 and 2025. The other 2 questions below.
- 2025 Q47Which of the following statements are true? A. Unlike Ga that has a very high melting point, Cs has a very low melting point. B. On…Other · Medium
- 2024 Q71Arrange the following elements in increasing order of first ionization enthalpy: Li, Be, B, C, N Choose the correct answer from the…One-line MCQ · Medium
Ionization Enthalpy Trends: every question and how it was framed
The chapter
Classification of Elements and Periodicity in Properties in ten years of NEET
13 questions from 2017–2026, asked in 9 of 10 papers, about 1.3 a paper. Periodic Properties alone had 13.