Edexcel International GCSE (IGCSE) Chemistry · 4CH1 · Papers 1 & 2 · 2019–2026

Every Edexcel IGCSE Chemistry Past Paper, Worked Line by Line

Fully solved and classified past papers with every calculation shown step by step — plus a practice app and video explanations — so your child never loses marks for missing working again.

Complete Chemistry notes eBook included free with this pack

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Every exam series — nothing missing
2019 2026

Every past paper from 2019 right up to the most recent 2026 sessions — fully solved and classified. The latest papers are the ones free sites never post, and they are the truest rehearsal for the exam your child actually sits.

★★★★★

“The explanations connect the working to the chemistry, so I am not just copying steps. I can use the same approach when the numbers change.”

Alina Gerber · IGCSE Chemistry · CH
★★★★★

“The solutions contain every marking point but are much easier to understand than a brief mark scheme. I know exactly what to write for full credit.”

Costas Makrides · IGCSE Chemistry · CY
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“I can open the ebook on my laptop, tablet and phone, even at the same time. Much more practical than carrying all the printed papers.”

Jassim Al-Sulaiti · IGCSE Chemistry · QA
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“A few days of focused work with these solved papers improved both my speed and confidence. The full solutions showed me what a complete answer looks like.”

Rojda Kaplan · IGCSE Chemistry · TR
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“The online finder saves me from searching hundreds of pages. The session, year and question number take me straight to the answer.”

Xavi Fontanet · IGCSE Chemistry · ES
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“Every calculation includes the full working and units. This made it easy to spot the step I had missed and learn the correct method.”

Yala Nizam · IGCSE Chemistry · MV
Hosni Showike teaching Biology and Chemistry
Meet Your Teacher

Solutions written around the mark scheme — not the textbook

I'm Hosni Showike, and I've spent 21 years teaching IGCSE and A-level Biology and Chemistry. I hold master's degrees in biochemistry and biotechnology from the University of Brussels, an international teaching certificate from the USA, and I currently serve as Head of Science at Nottingham British School. I've authored five science textbooks with more than 20,000 copies sold worldwide.

These solved past papers fix one specific problem: students who understand the topic but still drop marks — because no one showed them the exact wording examiners reward. Every answer is modelled on the mark scheme and examiner reports.

Proof, Not Promises

Real Students. Real Grades.

Verified grade distributions from recent June sessions. Pick a year — the chart draws itself.

69% A/A* · June 2025
  • Scored A or A* 69%
  • Scored B 21%
  • Scored C 6%
  • D or below 4%

June 2025 · highest A/A* rate in five years.

The Method

How Every Answer Is Built

Each solution works backwards from the mark scheme and examiner reports — so your child learns the exact wording that earns each mark, then practises it until full marks become routine.

Read the command word

Every question is decoded first — describe, explain, calculate — so you answer what the examiner is actually asking.

Write the mark-scheme points

Model answers show the precise phrasing that scores, point by point — no padding, nothing missed.

Check the examiner insight

Short notes flag the traps that cost most students marks — the ones examiner reports call out year after year.

Chem-Bio past-paper practice app showing topical and classified modes, choose topics or exam years
Practice App Included

Practise by topic or by year — on any device

Every book comes with the Chem-Bio practice app. Your child solves real exam questions, checks the full worked answer, and tracks what they've mastered.

  • Switch between Topical and Classified modes
  • Choose the topics or the exam years you want to drill
  • Enter any exam question number and jump straight to the worked answer
  • Regularly updated with the most recent exam sessions
What's Covered

Exactly What You'll Practise

Every question mapped to the Edexcel International GCSE (IGCSE) Chemistry (4CH1) specification, across Papers 1 and 2, solved for the 2019–2026 sessions.

The structure and stoichiometry foundations the whole spec builds on.

  • States of matter, atoms and the Periodic Table
  • Ionic, covalent and metallic bonding
  • Moles, formulae, equations and calculations

Reaction-pattern and preparation questions that recur every series.

  • Group 1, Group 7 and gases in the air
  • Reactivity series and metal extraction
  • Acids, alkalis, salts and tests for ions

Method-heavy topics that reward shown working.

  • Energetics and reaction profiles
  • Rates of reaction and catalysts
  • Equilibria and reversible reactions

The applied organic topics that close Paper 2.

  • Alkanes, alkenes and crude oil
  • Alcohols, carboxylic acids and esters
  • Synthetic polymers and reaction pathways

Experimental and data questions, solved just as fully as the theory.

  • Apparatus, method and variables
  • Recording and processing results
  • Analysis, error and evaluation
See Before You Buy

Flip Through Real Pages

Turn the pages of the actual books — every paper is either fully solved or provided as classified topical questions.

Edexcel IGCSE Chemistry — Full Solved Papers, Paper 1
Edexcel IGCSE Chemistry — Topical Questions, Paper 2
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Edexcel International GCSE (IGCSE) Chemistry four-book set: complete notes, classified past papers for Papers 1 and 2, and fully solved papers 2019 to 2026, tied with a gold ribbon
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One-time payment · 2 years full access

Complete Chemistry notes eBook included free with this pack

  • Every Paper 1 & 2 past paper solved (2019–2026)
  • Every calculation worked line by line with units
  • Classified topical questions for targeted revision
  • Practice app — solve by topic or by year
  • Video explanations for the hardest questions
  • Direct WhatsApp support · 2 years access
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Eight-book Edexcel International GCSE (IGCSE) Biology and Chemistry bundle: complete notes, classified past papers for Papers 1 and 2, and fully solved papers 2019 to 2026, tied with a gold ribbon

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Both Edexcel International GCSE (IGCSE) sciences: every solved paper, both classified topical sets and both practice apps.

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Edexcel International GCSE (IGCSE) Biology four-book set: complete notes, classified past papers for Papers 1 and 2, and fully solved papers 2019 to 2026, tied with a gold ribbon

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The parallel Biology pack — Papers 1 and 2 fully solved and classified.

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Bonus 01

The Practice App — included free

Solve by topic or by year, enter any question number for the direct answer, and get every new session as it's added.

Bonus 02

Direct WhatsApp Access to Mr Hosni — included free

Ask about any question or answer and get a reply from the teacher directly — never a chatbot or a junior tutor.

Bonus 03

Video Explanations — included free

Watch the trickiest questions worked on screen, step by step, so the method sticks.

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FAQ

Questions? Answered.

A complete set of fully worked papers plus topical past papers grouped by specification area — principles of chemistry, inorganic chemistry, physical chemistry and organic chemistry. Each question is solved fully and clearly, so rather than a lone final answer your child follows every step that led to it.

Entirely different, and that is the point of the whole resource. Calculations lose marks when the working is thin, so we set out every step — balanced equation, mole ratio, working and final answer with units — so the method is impossible to misread.

Yes, in complete detail. Each titration and mole calculation is worked from the equation through the ratio to the final concentration or mass, with the rounding shown, until the routine feels automatic.

You can, and it is a real edge. Chemistry recycles its question types far more than Biology, and our fully solved topical papers make those patterns obvious, so your child banks the predictable marks.

It lets your child revise in two modes: Topical (choose the topics to drill) and Classified (choose exam years). They can also enter any exam question number and jump straight to the worked answer. It is updated regularly with the most recent sessions.

It covers both Paper 1 and Paper 2, with the calculation-heavy and extended questions worked as fully as the shorter ones. You get every series from 2019 to the latest 2026 sessions, added automatically, with two full years of access.

Your A* in Edexcel IGCSE Chemistry Starts Here

Every past paper from 2019 to 2026, solved and classified, with the practice app and model answers built around exactly what examiners reward.

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