JEE Main · Chemistry · General Principles and Processes of Isolation of Elements
Ellingham Diagram Intersections
JEE Main asked Ellingham Diagram Intersections 2 times in 2 of the 108 shifts Lumi analysed, in 2020 and 2022. It belongs to Metallurgical Extraction, in General Principles and Processes of Isolation of Elements (Chemistry). The longest wait between two years asking it was 2 years.
Updated 2026-10-24
- Times asked
- 2
- in 2 shifts
- Years
- 2 of 8
- First asked
- 2020
- last in 2022
- Pattern
- Occasional
- across the analysed shifts
Questions on this idea a shift, by year
2017–2026. Asked in 2020 and 2022. 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: 1 in 12 shifts · 2021: 0 in 24 shifts · 2022: 1 in 24 shifts · 2023: 0 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
Assertion–reason is the usual form. Skill tested: conceptual.
- Assertion-reason on ellingham diagram intersection
- Temperature range for reduction from ellingham diagram
Difficulty
Every question was multiple choice.
Every question
All 2 questions
From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.
- 28 Jun 2022, Shift 1 · Q64Given are two statements one is labelled as Assertion A and other is labelled as Reason R. Assertion A :Magnesium can reduce…MediumAssertion–reason
- 9 Jan 2020, Shift 1 · Q33According to the following diagram, A reduces when the temperature is :MediumDiagram basedHas a figure
Shifts: 9 Jan 2020, Shift 1, 28 Jun 2022, Shift 1.
Same topic
Other ideas in Metallurgical Extraction
Metallurgical Extraction has 21 ideas JEE Main has asked; 10 of them came up in more than one question. The 12 most asked are below.
- Metal Refining Techniques6× · 2023
- Ellingham Diagram Basics6× · 2022
- MacArthur-Forrest Cyanide Process6× · 2022
- Hall-Heroult Process5× · 2023
- Bayer Process Chemistry4× · 2022
- Calcination vs. Roasting3× · 2023
- Liquation Refining Principle3× · 2022
- Ellingham Diagram Phase Transitions2× · 2023
- Iron Extraction Chemistry2× · 2020
- Blister Copper Formationonce · 2023
- Reducing Agent Selectiononce · 2023
- Acidic vs Basic Flux Selectiononce · 2022