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CIE · IGCSE · Co-ordinated Science (Double Award)

States of Matter and Atomic Structure
Practice Questions

20 CIE IGCSE Co-ordinated Science (Double Award) questions on States of Matter and Atomic Structure, each with instant feedback and a full examiner-style mark scheme.

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Try 2 sample questions on States of Matter and Atomic Structure

Question 1 · 1 mark · Difficulty 1/3

Which property is characteristic of a substance with a giant ionic lattice structure?

  1. It conducts electricity when solid and when dissolved in water
  2. It is insoluble in water because of strong ionic bonds
  3. It conducts electricity when molten or dissolved in water
  4. It has a low melting point due to weak electrostatic forces
Show answer & explanation
✓ Answer: C — It conducts electricity when molten or dissolved in water
Ionic compounds conduct electricity when molten or dissolved in water because the ions are free to move and carry charge. In the solid state, ions are held in fixed positions in the lattice and cannot move, so they do not conduct. Ionic compounds generally have high melting points due to strong electrostatic attractions, and many are soluble in water.
Question 2 · 1 mark · Difficulty 2/3

Which of the following correctly describes the structure and bonding in a sample of iodine (I₂) at room temperature?

  1. A giant covalent lattice with iodine atoms bonded throughout the structure
  2. Simple molecular with I₂ molecules held together by strong covalent intermolecular forces
  3. Simple molecular with I₂ molecules held together by weak intermolecular forces
  4. A giant ionic lattice with I⁻ ions held by electrostatic forces
Show answer & explanation
✓ Answer: C — Simple molecular with I₂ molecules held together by weak intermolecular forces
Iodine at room temperature consists of I₂ molecules, each held together by a single covalent bond. The individual molecules are attracted to each other by weak intermolecular forces, giving iodine a low melting point and making it a solid that sublimes easily. Option A is incorrect as iodine forms covalent, not ionic, bonds. Option C incorrectly describes a giant covalent structure. Option D incorrectly describes the forces between molecules as covalent — intermolecular forces are not covalent bonds.
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CIE IGCSE Co-ordinated Science (Double Award): States of Matter and Atomic Structure FAQ

How many CIE IGCSE Co-ordinated Science (Double Award) questions on States of Matter and Atomic Structure are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on States of Matter and Atomic Structure for CIE IGCSE Co-ordinated Science (Double Award), with new questions added every week. Each question gives you instant feedback and a full examiner-style mark scheme that tells you exactly what would earn marks on a real CIE paper. The questions span the full difficulty range — from straightforward recall (level 1) right up to multi-step reasoning and evaluation (level 3) — so the bank works for first-pass revision and final exam-week stress testing alike.
Is Kramizo free for CIE IGCSE students preparing for Co-ordinated Science (Double Award)?
Yes — completely free. Every student gets 45 questions a day on the free plan, with no card required and no trial countdown. That free quota works across every subject and every topic in our bank, so you can mix States of Matter and Atomic Structure practice with other Co-ordinated Science (Double Award) topics or even switch to a totally different CIE subject without paying anything. Kramizo's optional Pro plan removes the daily cap and adds detailed progress analytics, but the free tier is the real product — used by thousands of GCSE, IGCSE and CSEC students.
Are the States of Matter and Atomic Structure questions aligned to the official CIE IGCSE Co-ordinated Science (Double Award) syllabus?
Every question is written against the published CIE IGCSE Co-ordinated Science (Double Award) specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real CIE paper. Explanations are written in the style of official examiner mark schemes — they tell you what is being awarded marks and why distractors are wrong, not just whether you got it right. The bank is continually refined to match the latest syllabus updates from CIE.
How is States of Matter and Atomic Structure typically tested on CIE IGCSE Co-ordinated Science (Double Award) papers?
States of Matter and Atomic Structure appears across multiple question types on real CIE IGCSE Co-ordinated Science (Double Award) papers — most commonly as multiple-choice questions in the objective section, structured short-answer questions in the main paper, and occasionally as part of an extended response. Kramizo's practice bank reflects that mix: 4-option MCQs, true/false statements, fill-in-the-blank key terms, multi-select questions, and ordering questions. Working through the bank gives you exposure to every question style examiners actually use.

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