JEE Main 2022 · ChemistryMultiple choiceSingle correctMediumConceptual

JEE Main 26 June 2022, Shift 2, Chemistry Q69

Question 69 of 90 in this shift, Chemistry question 9 of 30, Section A.

The most common oxidation state of Lanthanoid elements is +3. Which of the following is likely to deviate easily from +3 oxidation state?

(1)Ce (At. No. 58)Official answer
(2)La (At. No. 57)
(3)Lu (At. No. 71)
(4)Gd (At. No. 64)

Official answer

Option 1

NTA final key.

Chapter: The d- and f-Block Elements
Topic: f-Block Elements
Idea tested: Lanthanide Oxidation States

Same idea in other shifts

Asked 4× in all

13 Apr 2023, Shift 1 · Q70The pair of lanthanides in which both elements have high third - ionization energy is:MediumSingle correct
28 Jun 2022, Shift 1 · Q68Which one of the lanthanoids given below is the most stable in divalent form?EasySingle correct
26 Feb 2021, Shift 1 · Q38Which one of the following lanthanoids does not form $\mathrm{MO_2}$ ? [M is lanthanoid metal]MediumSingle 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.