JEE Main Chemistry · Organic Chemistry: Some Basic Principles and Techniques
Empirical Formula from Mass Percentage
Empirical Formula from Mass Percentage (Organic Chemistry: Some Basic Principles and Techniques) was asked 2 times in 2 JEE Main shifts, 2026, out of the 42 shifts Lumi analysed. 1 of the 2 had a numerical answer.
- Times asked
- 2
- in 2 shifts
- Years
- 2026
- Usual format
- Numerical value
- Calculation
- Pattern
- New since 2024
- repeats across shifts
How it is asked
- Empirical formula from analysis data
- Empirical formula from mass percentage
Difficulty
Easy 1Medium 1Hard 0
Where it sits
Chapter: Organic Chemistry: Some Basic Principles and Techniques. Topic: Mole Concept, 25 questions over 12 ideas.
Other repeat ideas in this topic
Every time it came
All 2 questions
Newest first, each with its options and official answer.
- 4 Apr 2026, Shift 1 · Q73 g of a bromo hydrocarbon (X) was subjected to Carius analysis, gave g of AgBr. The percentage of carbon in the compound (X)…MediumNumerical value
- 6 Apr 2026, Shift 1 · Q51An oxide of iron contains 69.9% iron, its empirical formula, is: (Given : Molar mass of Fe and O are 56 and 16 g mol respectively.)EasySingle correct