JEE Main · Chemistry · The d- and f-Block Elements
Lanthanide Oxidation States
JEE Main asked Lanthanide Oxidation States 4 times in 4 of the 108 shifts Lumi analysed, in 2021, 2022 and 2023. It belongs to f-Block Elements, in The d- and f-Block Elements (Chemistry). The longest wait between two years asking it was 1 year. In 2022 it came in more than one shift of the same year.
Updated 2026-10-24
- Times asked
- 4
- in 4 shifts
- Years
- 3 of 8
- First asked
- 2021
- last in 2023
- Pattern
- Comes in cycles
- across the analysed shifts
Questions on this idea a shift, by year
2017–2026. Asked in 2021, 2022 and 2023. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.
Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 1 in 24 shifts · 2022: 2 in 24 shifts · 2023: 1 in 12 shifts · 2024: 0 in 18 shifts · 2025: 0 in 8 shifts · 2026: 0 in 9 shifts.
Shift by shift
Each square is one analysed shift, in date order. Open a filled one for that paper.
How JEE Main framed it
Single correct is the usual form. Skill tested: conceptual.
- Pair selection among lanthanides
- Lanthanoid most stable in divalent form
Difficulty
Every question was multiple choice.
Every question
All 4 questions
From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.
- 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 Jun 2022, Shift 2 · Q69The most common oxidation state of Lanthanoid elements is +3. Which of the following is likely to deviate easily from +3 oxidation state?MediumSingle correct
- 26 Feb 2021, Shift 1 · Q38Which one of the following lanthanoids does not form ? [M is lanthanoid metal]MediumSingle correct
Shifts: 26 Feb 2021, Shift 1, 26 Jun 2022, Shift 2, 28 Jun 2022, Shift 1, 13 Apr 2023, Shift 1.
Same topic
Other ideas in f-Block Elements
f-Block Elements has 11 ideas JEE Main has asked; 4 of them came up in more than one question.
- Lanthanide Electronic Configuration8× · 2026
- Cerium(IV) as an Oxidizing Agent4× · 2026
- Magnetic and Spectral Properties2× · 2024
- Identifying Colorless Lanthanide Ionsonce · 2024
- Europium(II) and Ytterbium(II) as Reducing Agentsonce · 2023
- Anomalous Electronic Configuration of Gadoliniumonce · 2021
- Basicity Trend of Lanthanide Hydroxidesonce · 2021
- Europium(II) as a Reducing Agentonce · 2021
- Identifying Diamagnetic Lanthanide Ionsonce · 2021
- Mischmetal Composition and Usesonce · 2020