JEE Main Chemistry · Solutions
PPM and Mass Percentage
PPM and Mass Percentage (Solutions) was asked 4 times in 4 JEE Main shifts, 2020–2025, out of the 42 shifts Lumi analysed. 4 of the 4 had a numerical answer.
- Times asked
- 4
- in 4 shifts
- Years
- 2020–2025
- Usual format
- Numerical value
- Calculation
- Pattern
- Frequent
- repeats across shifts
How it is asked
- Molality from ppm and molarity
- Mass percent of mixed solutions
Difficulty
Easy 2Medium 2Hard 0
Where it sits
Chapter: Solutions. Topic: Mole Concept, 25 questions over 12 ideas.
Other repeat ideas in this topic
Every time it came
All 4 questions
Newest first, each with its options and official answer.
- 4 Apr 2025, Shift 2 · Q73Sea water, which can be considered as a 6 molar (6 M) solution of NaCl, has a density of . The concentration of…MediumNumerical value
- 11 Apr 2023, Shift 1 · Q81A solution of sugar is obtained by mixing 200g of its 25% solution and 500g of its 40% solution (both by mass). The mass percentage of the…EasyNumerical value
- 8 Jan 2020, Shift 1 · Q46Ferrous sulphate heptahydrate is used to fortify foods with iron. The amount (in grams) of the salt required to achieve 10 ppm of iron in…MediumNumerical value
- 9 Jan 2020, Shift 2 · Q4710.30 mg of is dissolved into a liter of sea water of density 1.03 g/mL. The concentration of in ppm is…EasyNumerical value