JEE Main · Chemistry · General Principles and Processes of Isolation of Elements
Adsorption in Froth Flotation
JEE Main asked Adsorption in Froth Flotation 3 times in 3 of the 108 shifts Lumi analysed, in 2021, 2022 and 2023. It belongs to Adsorption, in General Principles and Processes of Isolation of Elements (Chemistry). The longest wait between two years asking it was 1 year.
Updated 2026-10-24
- Times asked
- 3
- in 3 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: 1 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: recall.
- Identify role of reagent in froth flotation
- Reagent acting as depressant in froth flotation
Difficulty
Every question was multiple choice.
Every question
All 3 questions
From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.
- 10 Apr 2023, Shift 1 · Q64Which of the following is used as a stabilizer during the concentration of sulphide ores?EasySingle correct
- 26 Jun 2022, Shift 2 · Q64The role of depressants in 'Froth Floation method' is toMediumSingle correct
- 26 Aug 2021, Shift 2 · Q35Given below are two statements : Statement I : Sphalerite is a sulphide ore of zinc and copper glance is a sulphide ore of copper.…MediumTwo statements
Shifts: 26 Aug 2021, Shift 2, 26 Jun 2022, Shift 2, 10 Apr 2023, Shift 1.
Same topic
Other ideas in Adsorption
Adsorption has 13 ideas JEE Main has asked; 10 of them came up in more than one question.
- Freundlich Logarithmic Plot7× · 2023
- Adsorption Chromatography Principle3× · 2024
- Critical Temperature and Extent of Adsorption3× · 2023
- Adsorption in Chromatography2× · 2024
- Adsorption Chromatography Principle2× · 2023
- Adsorption Theory of Heterogeneous Catalysis2× · 2023
- Thermodynamics of Adsorption2× · 2023
- Limits of Freundlich Exponent (1/n)2× · 2022
- Freundlich Isotherm Equation2× · 2021
- Adsorption from Solutionsonce · 2021
- Factors Affecting Adsorptiononce · 2021
- Physisorption vs Chemisorptiononce · 2020