If you are preparing for 9th Class Chemistry Objective Paper, this post is extremely important for you.
We analyzed past papers from 2018 to 2024 and selected the Top 20 most repeated MCQs that are highly expected in Board Exams 2026.
🔥 Most Repeated MCQs (With Years)
📘 Atomic Structure & Periodic Table
- Electronegativity of Fluorine (4.0)
👉 Asked in: 2018, 2021, 2022, 2023, 2024 - Subshell ‘p’ maximum electrons = 6
👉 Asked in: 2018, 2023, 2024 - Atomic number is the basis of modern periodic table
👉 Asked in: 2018, 2020, 2022 - Number of elements in 3rd period = 8
👉 Asked in: 2018, 2021, 2023 - Group 13–18 elements have valence electrons in p-subshell
👉 Asked in: 2020, 2022
⚗️ Chemical Reactions & Concepts
- Oxidation = loss of electrons
👉 Asked in: 2020, 2021, 2022, 2023 - Redox reaction concept
👉 Asked in: 2018, 2021, 2022, 2024 - Electrolysis → deposition of metal (Electroplating)
👉 Asked in: 2019, 2022, 2024 - Oxidation number of hydrogen in HCl = +1
👉 Asked in: 2021, 2022, 2023 - Oxidizing agent in Zn + HCl → H⁺
👉 Asked in: 2021, 2022, 2023
💧 States of Matter & Solutions
- Air is a solution → Gas in Gas
👉 Asked in: 2023, 2024 - Fog/Mist → Liquid in Gas
👉 Asked in: 2018, 2022 - Colloids show Tyndall effect
👉 Asked in: 2022, 2023 - Milk of magnesia → Suspension/Colloid
👉 Asked in: 2018, 2023 - Diffusion fastest in gases
👉 Asked in: 2023, 2024
🧠 Conceptual + Numerical MCQs
- 1 atm = 101325 Pascal
👉 Asked in: 2019, 2021, 2022 - Boiling point of NaCl ≈ 1413°C
👉 Asked in: 2018, 2020, 2021 - Mass of one molecule of water = 18 amu
👉 Asked in: 2021, 2022, 2023 - Father of nuclear science = Rutherford
👉 Asked in: 2020, 2024 - Lightest metal = Lithium
👉 Asked in: 2019, 2022, 2023
🎯 Extra Important (Even if not repeated but HIGH chance)
- Kelvin scale starts at -273°C
- Boyle’s Law → PV = k
- Strong electrolyte → NaOH solution
- Non-electrolyte → Benzene / Sugar solution
- Covalent bond → sharing of electrons
📢 Free MCQs Practice Online
Practice these MCQs online and check your preparation:
✔ Real board MCQs
✔ Instant answers
✔ Performance tracking
💡 Pro Tips for Objective Paper
✔ Focus on definitions
✔ Learn values (4.0, 1413°C, 101325 Pa)
✔ Practice MCQs daily
✔ Revise periodic trends
🏁 Final Words
These MCQs are selected from real board papers — if you prepare them properly, you can easily score full marks in objective paper.
👉 Visit examtips.pk for free tests and smart preparation.
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