JEE Main 2025 · ChemistryMultiple choiceSingle correctEasyConceptual

JEE Main 7 April 2025, Shift 2, Chemistry Q59

Question 59 of 75 in this shift, Chemistry question 9 of 25, Section A.

Choose the incorrect trend in the atomic radii (r) of the elements.

(1) $r_{At}<r_{Cs}$
(2) $r_{Mg}<r_{Al}$ Official answer
(3) $r_{Rb}<r_{Cs}$
(4) $r_{Br}<r_{K}$

Official answer

Option 2

NTA final key.

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

Same idea in other shifts

Asked 3× in all

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
2 Sep 2020, Shift 1 · Q32In general, the property (magnitudes only) that shows an opposite trend in comparison to other properties across a period is :EasySingle 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 42 of the 174 JEE Main shifts held from 2017 to 2026.