JEE Main · Chemistry · Some Basic Concepts of Chemistry
Eudiometry and Gas Mixture Analysis
JEE Main asked Eudiometry and Gas Mixture Analysis 2 times in 2 of the 108 shifts Lumi analysed, in 2021 and 2024. It belongs to Stoichiometry, in Some Basic Concepts of Chemistry (Chemistry). The longest wait between two years asking it was 3 years.
Updated 2026-10-24
- Times asked
- 2
- in 2 shifts
- Years
- 2 of 8
- First asked
- 2021
- last in 2024
- Pattern
- Occasional
- across the analysed shifts
Questions on this idea a shift, by year
2017–2026. Asked in 2021 and 2024. 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: 0 in 24 shifts · 2023: 0 in 12 shifts · 2024: 1 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
Numerical value is the usual form. Skill tested: calculation.
- Hydrocarbon formula from combustion volumes
- Formula of gaseous hydrocarbon from volume data
Difficulty
2 of the 2 questions had a numerical answer.
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.
- 1 Feb 2024, Shift 2 · Q8110 mL of gaseous hydrocarbon on combustion gives 40 mL of and 50 mL of water vapour. Total number of carbon and…EasyNumerical value
- 24 Feb 2021, Shift 2 · Q51The formula of a gaseous hydrocarbon which requires 6 times of its own volume of for complete oxidation and produces 4…MediumNumerical value
Shifts: 24 Feb 2021, Shift 2, 1 Feb 2024, Shift 2.
Same topic
Other ideas in Stoichiometry
Stoichiometry has 24 ideas JEE Main has asked; 13 of them came up in more than one question. The 12 most asked are below.
- Stoichiometry of Dumas Method10× · 2025
- Stoichiometry of Kjeldahl Method9× · 2024
- Limiting Reagent Identification8× · 2026
- Empirical Formula from Combustion Data8× · 2025
- Theoretical and Percent Yield7× · 2022
- Gravimetric Precipitation Analysis6× · 2026
- Mole-to-Mole Relationships5× · 2024
- Hydrocarbon Combustion General Equation4× · 2026
- POAC in Combustion Analysis3× · 2026
- Mass-Volume Stoichiometry at STP3× · 2025
- Mass-Mass Stoichiometry3× · 2024
- Stoichiometry of Thermal Decomposition2× · 2026