Chemistry MCQs for 9th Class (Federal Board)

This page has over 3,200 multiple-choice questions for Chemistry (9th Class (Federal Board)), arranged in 16 chapters and 31 topics. The chapters include Nature of Science in Chemistry, States of Matter and Classification, Atomic Structure, Chemical Bonding and Stoichiometry. Every question has four options, an instant answer and, where available, a short explanation.

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Chapters and topics

  • Nature of Science in Chemistry 1 topic · 104 MCQs
  • States of Matter and Classification 3 topics · 303 MCQs
  • Atomic Structure 3 topics · 321 MCQs
  • Chemical Bonding 3 topics · 305 MCQs
  • Stoichiometry 3 topics · 333 MCQs
  • Redox Reactions and Corrosion 2 topics · 219 MCQs
  • Energetics 2 topics · 202 MCQs
  • Chemical Equilibrium 1 topic · 101 MCQs
  • Acids, Bases and pH 2 topics · 200 MCQs
  • Periodic Table and Periodicity 2 topics · 212 MCQs
  • Group Properties and Elements 2 topics · 203 MCQs
  • Environmental Chemistry: Atmosphere 1 topic · 112 MCQs
  • Environmental Chemistry: Water and Fertilizers 1 topic · 103 MCQs
  • Organic Chemistry and Hydrocarbons 2 topics · 217 MCQs
  • Biochemistry and Nutrition 1 topic · 102 MCQs
  • Practical Chemistry 2 topics · 205 MCQs

Sample Chemistry MCQs

Try these questions, then open the full practice to work through every chapter. Tap “Show the answer” after you choose.

Q1. Chemistry is defined as the branch of science that deals with:

  1. living organisms only
  2. the motion of objects
  3. the composition, properties and changes of matter
  4. the stars only
Show the answer

Answer: C. the composition, properties and changes of matter

Chemistry studies matter and the changes it undergoes.

Q2. The state of matter of iron nail is:

  1. liquid
  2. Bose–Einstein condensate
  3. solid
  4. plasma
Show the answer

Answer: C. solid

The correct answer is “solid”. Iron nail is a solid.

Q3. An atom of carbon (C) has mass number 12 and atomic number 6. How many neutrons does it contain?

  1. 6
  2. 12
  3. 18
  4. 7
Show the answer

Answer: A. 6

Neutrons = mass number − atomic number = 12 − 6 = 6.

Q4. Which material is best suited for electrical contacts and jewellery?

  1. aluminium
  2. tungsten
  3. gold
  4. copper
Show the answer

Answer: C. gold

Gold is used because it does not corrode and conducts well.

Q5. The molecular formula of the structure CH3–CH2–OH is:

  1. C₂H₆O
  2. COCl₂
  3. H₂SO₄
  4. C₂H₄O
Show the answer

Answer: A. C₂H₆O

The correct answer is “C₂H₆O”. Count each type of atom: C₂H₆O.

Q6. The correct systematic name of FeSO₄ is:

  1. iron(III) sulfate
  2. iron(II) sulfate
  3. copper(I) oxide
  4. iron(II) chloride
Show the answer

Answer: B. iron(II) sulfate

The Roman numeral gives the oxidation number of the metal: FeSO₄ is iron(II) sulfate.

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