JEE Main 2020 · ChemistryMultiple choiceSingle correctEasyConceptual

JEE Main 2 September 2020, Shift 1, Chemistry Q32

Question 32 of 75 in this shift, Chemistry question 7 of 25.

In general, the property (magnitudes only) that shows an opposite trend in comparison to other properties across a period is :

(1)Electronegativity
(2)Atomic radiusOfficial answer
(3)Ionization enthalpy
(4)Electron gain enthalpy

Official answer

Option 2

NTA final key (Sep 2020).

Chapter: Classification of Elements and Periodicity in Properties
Topic: Periodic Trends
Idea tested: Atomic and Ionic Radii Trends

Same idea in other shifts

Asked 6× in all

7 Apr 2025, Shift 2 · Q59Choose the incorrect trend in the atomic radii (r) of the elements.EasySingle correct
5 Apr 2024, Shift 2 · Q66Given below are two statements : Statement I : The metallic radius of Na is $1.86\ \mathrm{A^\circ}$ and the ionic radius of…EasyTwo statements
30 Jan 2024, Shift 1 · Q65Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : There is a…MediumAssertion–reason
31 Jan 2024, Shift 2 · Q66Consider the following elements. Group $\downarrow$ A' B' $\rightarrow$ Period C' D' Which of the following is/are true about A', B', C'…MediumOtherHas a figure
8 Jan 2020, Shift 2 · Q32The increasing order of the atomic radii of the following elements is : (a) C (b) O (c) F (d) Cl (e) BrEasySingle correct

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.