Some Basic Concepts of Chemistry in NSEC: previous year question analysis
Some Basic Concepts of Chemistry has appeared 67 times in NSEC between 2007 and 2025, making it the 9th most-asked of 29 chapters and about 5% of the bank. Over the last 5 years it has averaged 2 questions per year.
Total PYQs
67
Years covered
2007–2025
Weightage rank
#9 of 29
Share of bank
5%
How many Some Basic Concepts of Chemistry questions appeared each year
| Year | Questions | Relative volume |
|---|---|---|
| 2012 | 5 | |
| 2014 | 3 | |
| 2015 | 3 | |
| 2016 | 2 | |
| 2017 | 7 | |
| 2018 | 6 | |
| 2019 | 5 | |
| 2021 | 1 | |
| 2022 | 2 | |
| 2023 | 1 | |
| 2024 | 1 | |
| 2025 | 5 |
Which Some Basic Concepts of Chemistry sub-topics are asked most
Every question in this chapter is tagged to a sub-topic, so you can see exactly where the marks sit before you revise.
- Percentage composition by mass2 questions
- Combustion stoichiometry2 questions
- Mole concept / Avogadro number2 questions
- Gravimetric stoichiometry2 questions
- Limiting reagent / stoichiometry2 questions
- Molarity of ions1 questions
- Moles of ions in solution1 questions
- Dilution / normality1 questions
- Empirical formula1 questions
- Molarity of mixtures1 questions
Question formats used in Some Basic Concepts of Chemistry
- Single-correct MCQ66
- Multiple-correct MCQ1
How Some Basic Concepts of Chemistry compares with nearby chapters
- #7Hydrocarbons79
- #8The p-Block Elements73
- #9Some Basic Concepts of Chemistry67
- #10Electrochemistry58
- #11Chemical Kinetics55
Counts are computed from AcadXL’s own NSEC question bank, tagged chapter- and sub-topic-wise and checked against official answer keys. Sign in to attempt the 67 Some Basic Concepts of Chemistry questions with solutions.