What percentage of carbon is in the human body?
- 16%
- 18%
- 20%
- 22%
Show answer and explanation
Answer: B. 18%
About 18%.
Matric General Science: Chemistry, questions with answers
Practise 83 real Federal Board questions on Chemistry from 2023 to 2026. See the answer and explanation as soon as you answer.
83real questions
33multiple choice
5exam sessions
About Chemistry in Matric General Science
Chemistry is one of the 5 main chapters in our Federal Board Matric General Science question bank (9th and 10th class), and about 14% of its real questions come from it. Tayyari Karo has 83 real questions on this chapter from 2023 to 2026; 33 are multiple choice and marked instantly, and the rest are short and long questions with a model answer. By difficulty: 43 medium, 40 easy.
Work through the questions below, then open the explanation for each one. Redo the ones you missed a few days later.
Try 8 real questions
These are real past-paper questions. Think of your answer first, then open the explanation.
Bucky balls are allotropic form of:
- Carbon
- Silicon
- Sodium
- Iron
Show answer and explanation
Answer: A. Carbon
Buckminsterfullerene (C60) is an allotrope of carbon.
Iron is converted into steel by adding:
- Nickel
- Carbon
- Chromium
- Zinc
Show answer and explanation
Answer: B. Carbon
Carbon.
Water has maximum density at ________ °C.
- 5
- 4
- 0
- 100
Show answer and explanation
Answer: B. 4
Water is densest at 4 °C.
Which is the alloy of iron and carbon?
- Alum
- Steel
- Brass
- Bronze
Show answer and explanation
Answer: B. Steel
Steel.
Which fraction of product of petroleum is used in cars as fuel?
- Diesel oil
- Petrol
- Kerosene oil
- Lubricating oil
Show answer and explanation
Answer: B. Petrol
Petrol (gasoline).
Name some of the elements necessary for health.
Show model answer
Elements necessary for health: calcium (bones, teeth), iron (haemoglobin), iodine (thyroid gland), sodium and potassium (nerves, water balance), phosphorus, magnesium and fluorine.
Write down any three uses of iodine in daily life.
Show model answer
Three uses of iodine in daily life: (1) iodised table salt to prevent goitre; (2) tincture of iodine as an antiseptic on cuts and wounds; (3) iodine compounds in medicines for the thyroid gland, in photography (silver iodide) and as a test for starch (blue-black colour).
Sessions with Chemistry questions
| Session | Questions |
|---|---|
| 2026 Annual | 33 |
| 2025 1st Annual | 18 |
| 2025 2nd Annual | 17 |
| 2024 Annual | 8 |
| 2023 Annual | 7 |
Common questions
What does the Chemistry chapter cover on this page?
83 real Federal Board (FBISE) General Science questions on Chemistry from 2023 to 2026, for 9th and 10th class. Each one shows the session it came from.
Are the answers official?
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.
Is it free?
You can start free with no signup. A small set of papers per subject is free, and Premium unlocks the full question bank.