Bohr's Model for Hydrogen Atom is a topic from the Structure of Atom chapter of Class 11 Chemistry, and it is part of the Chemistry section of the MHT CET for candidates who are preparing for the PCM (Physics, Chemistry, and Mathematics).
The key topics covered in Bohr's Model for Hydrogen Atom PYQs are:
- Energy of an electron in a stationary orbit
- Radius of a Bohr orbit
- Angular momentum of an electron
- Hydrogen-like ions He⁺, Li²⁺ and Be³⁺
Practising Bohr's Model for Hydrogen Atom MHT CET PYQ helps candidates to understand question pattern, improve calculation speed, and identify concepts which were asked in previous exams.
Based on chapter-wise analysis of the MHT CET Chemistry paper, you can get less than 1 mark per paper by covering Bohr's Model for Hydrogen Atom. The chapter recorded 22 questions across the 80 shifts in the data, and 5 of them came in the 2025 and 2026 papers, where it contributed about 0.3% per shift.
MHT CET Bohr's Model for Hydrogen Atom Chapter: Question Count, Marks and Weightage:
| 0.28 Average questions per shift (2018-2026) | 5 Questions in the 2025 and 2026 papers (33 shifts) |
| 22 Questions in the PDF (2021-2026) | 0.6% Estimated Chemistry paper weightage (0.3% in 2025-2026) |
The PDF holds 22 questions from MHT CET 2026 to 2021, newest first, each with its exam date and shift. Options are as printed and answer keys are not included.
Bohr's Model for Hydrogen Atom PYQ Statistics (2022-2026)
The table below shows the number of questions asked in MHT CET Bohr's Model for Hydrogen Atom PYQs. Every shift has 50 Chemistry questions, so the last column is the average per shift divided by 50.
| Year | Total Questions (across shifts) | Shifts in the Data | Average per Shift | Weightage (out of 50 Chemistry Qs) |
|---|---|---|---|---|
| 2026 | 2 | 16 | 0.12 | 0.2% |
| 2025 | 3 | 17 | 0.18 | 0.4% |
| 2024 | 9 | 18 | 0.50 | 1.0% |
| 2023 | 6 | 12 | 0.50 | 1.0% |
| 2022 | 0 | 1 | 0.00 | 0.0% |
The 2018 to 2021 papers in the PDF add 2 more questions: 2021 had 2, 2020 had none, 2019 had none, 2018 had none.
MHT CET Bohr's Model for Hydrogen Atom Important Questions: Based on the Last 5 Years
The major types of questions asked from Bohr's Model for Hydrogen Atom in MHT CET cover the following topics:
| Topic | Questions in the PDF | Questions in 2022-2026 | Average per Shift (2022-2026) |
|---|---|---|---|
| Angular momentum of an electron in an orbit | 4 | 4 | 0.06 |
| Radius of a Bohr orbit, for H and hydrogen-like ions | 8 | 8 | 0.12 |
| Energy of an electron in an orbit, for H and hydrogen-like ions | 9 | 7 | 0.11 |
| Other questions | 1 | 1 | 0.02 |
Pair PYQs with Other Study Material for MHT CET 2027
Click on the link to practise problems and time management skills:
| Resource | Link |
|---|---|
| MHT CET Sample Paper | Check Here |
| MHT CET Mock Test | Check Here |
Question Style in MHT CET Bohr's Model for Hydrogen Atom PYQs
All 22 questions in this PDF are single-correct MCQs. Each one needs a single Bohr formula, and several repeat with a different ion or orbit.
| Question Style | What it Tests |
|---|---|
| Energy of an orbit | The energy of the third orbit of He⁺, the first orbit of He⁺, the fourth orbit of hydrogen, and an electron in the n = 2 state |
| Radius of an orbit | The radius of the first orbit of He⁺ and Li²⁺, the third orbit of He⁺, and the fourth orbit of B⁴⁺ and Be³⁺ |
| Angular momentum | The angular momentum of an electron in the first and fourth orbit of hydrogen, and the equation that gives it |
| Frequency of radiation | The frequency when the transition is between two stationary states that differ in energy by ΔE |
| Gas laws | Which equation gives the combined relationship of Boyle's law and Charles's law |
How to Use the Bohr's Model for Hydrogen Atom PYQ PDF for MHT CET
- Start with the 2025 and 2026 papers first, because they hold 5 of the 22 questions.
- Learn rₙ = 52.9 n²/Z pm and Eₙ = -2.18 × 10⁻¹⁸ Z²/n² J, since almost every question is a substitution into them.
- Angular momentum is mvr = nh/2π, and it does not depend on Z.
- Solve year-wise PYQs by timing yourself, as time management is crucial.
- Re-attempt only the questions you got wrong, and note which formula or step you missed.
Video: Bohr's Model for Hydrogen Atom PYQs and MCQs
Source: Motion Education Deccan Pune
Bohr's Model for Hydrogen Atom PYQ for MHT CET Chemistry FAQs
Ques. How many questions come from Bohr's Model for Hydrogen Atom every year?
Ans. In this PDF, the questions are 2 from 2026, 3 from 2025, 9 from 2024, 6 from 2023 and 2 from 2021. In 2025 and 2026 together the chapter had 5 questions across 33 shifts, about 0.15 per shift.
Ques. Which topics are asked most frequently in MHT CET Bohr's Model for Hydrogen Atom?
Ans. Energy of an electron in an orbit, for H and hydrogen-like ions is the largest group with 9 of the 22 questions, about 41%.
Ques. What kind of questions are asked from Bohr's Model for Hydrogen Atom?
Ans. Single-correct MCQs that substitute into one of the Bohr formulas for the energy, radius or angular momentum of an electron in H, He⁺, Li²⁺ or similar ions.
Ques. What is the best way to practise Bohr's Model for Hydrogen Atom PYQs?
Ans. First solve the 2025 and 2026 questions completely, then the older ones, and finally re-attempt the questions you got wrong.
Ques. Can I score full marks from Bohr's Model for Hydrogen Atom?
Ans. In 2025 and 2026 together the chapter had 5 questions across 33 shifts. Learning the Bohr formulas for radius, energy and angular momentum is enough to secure it. Each Chemistry question in MHT CET is worth 1 mark.
Ques. Does the Bohr's Model for Hydrogen Atom PYQ PDF include solutions?
Ans. No. The PDF contains the questions with their exam date and shift, without answer keys or solutions.
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