JEE Main 2024 · ChemistryMultiple choiceOtherMediumRecall

JEE Main 4 April 2024, Shift 1, Chemistry Q66

Question 66 of 90 in this shift, Chemistry question 6 of 30, Section A.

The correct order of first ionization enthalpy values of the following elements is : (A) O (B) N (C) Be (D) F (E) B Choose the correct answer from the options given below :

(1)A < B < D < C < E
(2)B < D < C < E < A
(3)E < C < A < B < DOfficial answer
(4)C < E < A < B < D

Official answer

Option 3

NTA final key.

Chapter: Classification of Elements and Periodicity in Properties
Topic: Periodic Trends
Idea tested: Ionization Enthalpy Trends

Same idea in other shifts

Asked 14× in all

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8 Apr 2026, Shift 2 · Q58Match List - I with List - II. List - I (Electronic configuration of neutral atom (where n = 2)) | List - II (1 $^{st}$ Ionization Energy…MediumMatch the list
3 Apr 2025, Shift 1 · Q60Which of the following statements are correct ? A. The process of adding an electron to a neutral gaseous atom is always exothermic. B.…MediumOther
8 Apr 2025, Shift 2 · Q56The atomic number of the element from the following with lowest 1 $^{st}$ ionisation enthalpy is :EasySingle correct
4 Apr 2024, Shift 2 · Q66Given below are two statements : Statement I : The correct order of first ionization enthalpy values of Li, Na, F and Cl is Na < Li < Cl <…MediumTwo statements
1 Feb 2024, Shift 2 · Q65Given below are two statements : Statement (I) : Both metals and non-metals exist in p and d-block elements. Statement (II) : Non-metals…EasyTwo statements

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.