JEE Main 2023 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 12 April 2023, Shift 1, Chemistry Q65

Question 65 of 90 in this shift, Chemistry question 5 of 30, Section A.

The density of alkali metals is in the order

(1) $\mathrm{K < Na < Rb < Cs}$ Official answer
(2) $\mathrm{Na < K < Cs < Rb}$
(3) $\mathrm{K < Cs < Na < Rb}$
(4) $\mathrm{Na < Rb < K < Cs}$

Official answer

Option 1

NTA final key.

Chapter: The s-Block Elements
Topic: Periodic Trends
Idea tested: Density Anomaly in Alkali Metals (K vs Na)

Same topic in other shifts

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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.