Download Hydrogen NSEC PYQs — free PDF
All 6 previous-year questions on Hydrogen, each with the official answer and a worked solution. Free to download, print and share — no sign-up needed. Prefer to solve first? The questions-only edition has the same paper without solutions, with the answer key on the last page.
Hydrogen in NSEC: previous year question analysis
Hydrogen has appeared 6 times in NSEC between 2010 and 2021, making it the 28th most-asked of 29 chapters and about 0.5% of the bank. Over the last 5 years it has averaged 1 questions per year.
Answers checked against the official answer keys.
How many Hydrogen questions appeared each year
| Year | Questions | Relative volume |
|---|---|---|
| 2010 | 1 | |
| 2012 | 1 | |
| 2015 | 1 | |
| 2018 | 1 | |
| 2019 | 1 | |
| 2021 | 1 |
Which Hydrogen 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.
- Hydrides / commercial names1 questions
- Hardness of water / ion exchange / ppm1 questions
- Classification and properties of hydrides1 questions
- Structure of H2O2: dihedral angle, H-bonding & viscosity1 questions
- Heavy water / isotopic species1 questions
- Hardness of water1 questions
Question formats used in Hydrogen
- Single-correct MCQ5
- Multiple-correct MCQ1
How Hydrogen compares with nearby chapters
- #26General Principles of Metallurgy10
- #27Polymers10
- #28Hydrogen6
- #29Chemistry in Everyday Life4
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 6 Hydrogen questions with solutions.