NEET UG · Chemistry · Some Basic Concepts of Chemistry
Percentage Purity of a Sample
NEET asked Percentage Purity of a Sample once in 2017–2026, in 2023. It belongs to Mole Concept, in Some Basic Concepts of Chemistry (Chemistry).
Updated 2026-10-08
- Times asked
- 1
- in 2017–2026
- Papers
- 1
- of 10
- First asked
- 2023
- the only time
- Chance next paper
- 4%
- calibrated historical rate
Questions on this idea, by paper
2017–2026. 2023.
How NEET framed it
Numerical is the usual form. Skill tested: calculation.
- Numerical
Chance asked next paper 4%
Every question
The question
From the official NEET UG papers, newest first. Open one for the full question, the options and the official answer.
- 2023 Q56The right option for the mass of CO produced by heating 20 g of 20% pure limestone is (Atomic mass of Ca = 40)…Numerical · Easy
Papers: NEET 2023.
Same topic
Other ideas in Mole Concept
Mole Concept has 7 ideas NEET has asked; 3 of them came up in more than one question.
- Stoichiometric Calculations5× · 2026
- Mole-Mass-Particle Conversions3× · 2024
- Empirical and Molecular Formula2× · 2024
- Significant Figuresonce · 2026
- Counting Atoms in Polyatomic Moleculesonce · 2025
- Laws of Chemical Combinationonce · 2025