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Friday, 9 October

NEET UG · Chemistry · Classification of Elements and Periodicity in Properties

Ionization Enthalpy Trends

NEET asked Ionization Enthalpy Trends 3 times, in 2019, 2024 and 2025: 3 of the 1,875 questions in the 10 papers from 2017–2026. It belongs to Periodic Properties, in Classification of Elements and Periodicity in Properties (Chemistry). The longest wait between two papers asking it was 5 years.

Updated 2026-10-08

Times asked
3
in 2017–2026
Papers
3
of 10
First asked
2019
last in 2025
Chance next paper
11%
calibrated historical rate

Questions on this idea, by paper

2017–2026. 2019, 2024 and 2025.

0240’170’181’190’200’210’220’231’241’250’26

How NEET framed it

One-line MCQ is the usual form. Skill tested: application.

  • Order/ranking of property
  • Count correct statements on periodic trends

Chance asked next paper 11%

Every question

All 3 questions

From the official NEET UG papers, newest first. Open one for the full question, the options and the official answer.

Papers: NEET 2019, NEET 2024, NEET 2025.

Same topic

Other ideas in Periodic Properties

Periodic Properties has 11 ideas NEET has asked; 1 of them came up in more than one question.

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