Practise 356 real Federal Board Chemistry questions from 2023 to 2026. See an answer and explanation as soon as you answer.
Matric Chemistry is examined by the Federal Board of Intermediate and Secondary Education (FBISE) in the annual examinations, for 9th and 10th class. Tayyari Karo has real questions from 2023 to 2026, covering topics such as Chemical Reactivity, Environmental Chemistry (Atmosphere / Water), Fundamentals of Chemistry, Periodic Table and Periodicity and Structure of Molecules. Working through real papers is the fastest way to learn the paper pattern and the way questions are worded.
108 of the questions are multiple choice and marked instantly; the rest are short and long questions with a model answer. The answers are prepared by Tayyari Karo, since we could not find an official marking scheme.
These are real past-paper questions. Think of your answer first, then open the explanation.
The atomic mass number of an element is 35. It has 17 protons in its nucleus. What number of neutrons it will have in its nucleus?
Answer: B. 18
Number of neutrons = mass number − number of protons = 35 − 17 = 18.
Acetic acid is a colorless liquid with a characteristic vinegar-like smell. The use of technology and ways to obtain acetic acid on a large scale comes under:
Answer: C. Industrial Chemistry
Industrial chemistry deals with large-scale manufacturing processes for chemicals such as acetic acid.
In the following reaction identify whether "O" has been oxidized or reduced: 2H₂ + O₂ → 2H₂O
Answer: B. Reduced
Oxygen's oxidation number goes from 0 (in O₂) to −2 (in H₂O) — a decrease, which means it has been reduced.
Briefly explain saturated, unsaturated and supersaturated solutions.
A saturated solution contains the maximum amount of solute that can dissolve in a given solvent at a particular temperature; no more solute will dissolve (excess remains undissolved).
An unsaturated solution contains less solute than the maximum amount that could dissolve at that temperature — more solute can still be added and dissolved.
A supersaturated solution contains more dissolved solute than the normal saturation point at that temperature; it is unstable and formed by careful cooling of a hot saturated solution — excess solute crystallizes out if disturbed.
Number of questions available for each exam session.
| Session | 9th class | 10th class |
|---|---|---|
| 2026 Annual | 38 | – |
| 2025 1st Annual | 42 | 42 |
| 2025 2nd Annual | 42 | 42 |
| 2024 Annual | 42 | 42 |
| 2023 Annual | 33 | 33 |
Yes. Every question comes from a Federal Board (FBISE) Chemistry paper from 2023 to 2026, and each one shows the session it came from.
No. We could not find an official FBISE marking scheme for these papers, so the answers and explanations are written by Tayyari Karo for practice. Check anything important with your teacher or textbook.
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9th and 10th class. The table below shows how many questions we have for each exam session.
