JEE Main Chemistry · Some Basic Concepts of Chemistry
POAC in Combustion Analysis
POAC in Combustion Analysis (Some Basic Concepts of Chemistry) was asked 2 times in 2 JEE Main shifts, 2025–2026, out of the 42 shifts Lumi analysed. 1 of the 2 had a numerical answer.
- Times asked
- 2
- in 2 shifts
- Years
- 2025–2026
- Usual format
- Numerical value
- Calculation
- Pattern
- New since 2024
- repeats across shifts
How it is asked
- Sample mass from combustion analysis
- Percentage carbon from co2 mass
Difficulty
Easy 1Medium 1Hard 0
Where it sits
Chapter: Some Basic Concepts of Chemistry. Topic: Stoichiometry, 38 questions over 16 ideas.
Other repeat ideas in this topic
Every time it came
All 2 questions
Newest first, each with its options and official answer.
- 2 Apr 2026, Shift 2 · Q62Complete combustion of X g of an organic compound gave 0.25 g of and 0.12 g of . If the % of carbon is 25% and of hydrogen is…MediumSingle correct
- 7 Apr 2025, Shift 1 · Q74An organic compound weighing 500 mg, produced 220 mg of , on complete combustion. The percentage composition of carbon in…EasyNumerical value