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Energy level diagrams and bond energies
Practice Questions

20 CIE IGCSE Chemistry questions on Energy level diagrams and bond energies, each with instant feedback and a full examiner-style mark scheme.

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Try 2 sample questions on Energy level diagrams and bond energies

Question 1 · 1 mark · Difficulty 1/3

What does an energy level diagram show for a chemical reaction?

  1. The rate of the reaction over time
  2. The energy change between reactants and products
  3. The concentration of reactants during the reaction
  4. The volume of gases produced in the reaction
Show answer & explanation
✓ Answer: B — The energy change between reactants and products
Award 1 mark for identifying that energy level diagrams show the energy change between reactants and products. A is incorrect — rate of reaction is shown on rate-time graphs, not energy level diagrams. C is incorrect — concentration changes are shown on concentration-time graphs. D is incorrect — gas volumes are measured separately and not shown on energy level diagrams.
Question 2 · 1 mark · Difficulty 1/3

On an energy level diagram, what does the activation energy represent?

  1. The total energy released by the reaction
  2. The minimum energy required for a reaction to occur
  3. The difference in energy between reactants and products
  4. The energy stored in the bonds of the products
Show answer & explanation
✓ Answer: B — The minimum energy required for a reaction to occur
Award 1 mark for identifying activation energy as the minimum energy required for a reaction to occur. A is incorrect — this describes the enthalpy change for an exothermic reaction. C is incorrect — this is the overall enthalpy change (ΔH). D is incorrect — this is the total bond energy of products, not activation energy.
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20 questions · 25 min · free

CIE IGCSE Chemistry: Energy level diagrams and bond energies FAQ

How many CIE IGCSE Chemistry questions on Energy level diagrams and bond energies are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Energy level diagrams and bond energies for CIE IGCSE Chemistry, 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 Chemistry?
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 Energy level diagrams and bond energies practice with other Chemistry 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 Energy level diagrams and bond energies questions aligned to the official CIE IGCSE Chemistry syllabus?
Every question is written against the published CIE IGCSE Chemistry 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 Energy level diagrams and bond energies typically tested on CIE IGCSE Chemistry papers?
Energy level diagrams and bond energies appears across multiple question types on real CIE IGCSE Chemistry 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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