How to Revise for IGCSE Chemistry in 30 Days?

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How to Revise for IGCSE Chemistry in 30 Days?

How to Revise for IGCSE Chemistry in 30 Days?

A 30-day plan works when it’s built around exam output: past-paper accuracy, clean explanations, and fast calculations. Your aim isn’t to “cover everything” once. Your aim is to loop through the syllabus, then loop again with timed practice, then spend the final stretch fixing repeat mistakes.

The non-negotiables (do these daily)

  • 30 minutes Paper 2 MCQs (speed + accuracy)
  • 45–60 minutes Paper 4 questions (structured answers)
  • 10 minutes qualitative tests recap (ions + gases + flame tests)
  • Mistake log: write the error and the correct method/phrase

Keep a single “exam sheet” beside you: mole steps, electrode rules, salt prep methods, key tests, and common command words.

Days 1–10: Build the base fast (content + topical questions)

Goal: get every major topic into your head with immediate exam practice.

Day 1: Stoichiometry I

Moles, Mr, balancing, reacting masses.
Finish with a short topical set.

Day 2: Stoichiometry II

Concentration (mol/dm³), solution calculations, unit conversions, titration-style questions.

Day 3: Atoms, bonding, structure

Ionic/covalent/metallic, giant structures, structure → properties explanations.

Day 4: States of matter + separation

Diffusion, chromatography, distillation, crystallisation, purification.

Day 5: Acids, bases, salts I

pH, indicators, neutralisation, ionic equations.

Day 6: Acids, bases, salts II

Salt preparation methods + solubility rules + precipitation.

Day 7: Periodic Table

Groups 1 and 7 trends, noble gases, transition elements.

Day 8: Metals

Reactivity series, displacement, rusting, alloys, extraction ideas.

Day 9: Electrolysis + redox

Molten vs aqueous, electrode products, half-equations, oxidation numbers.

Day 10: Rates + energetics

Collision theory, graphs, catalysts, exo/endo, energy level diagrams.

Daily add-on (10–15 mins): one organic mini set (naming, functional groups, reactions) so it stays warm.

Days 11–20: Shift to exam mode (mixed practice + timing)

Goal: stop thinking in “chapters” and start thinking like the paper.

Day 11: Organic I

Alkanes, alkenes, cracking, bromine test, polymers.

Day 12: Organic II

Ethanol, acids, esters, conditions, common reactions.

Day 13: Environment + air/water

Pollutants, impacts, water treatment, fertilisers.

Day 14: Chemical reactions + equilibrium (if in your course)

Reversible reactions, conditions, yield ideas, redox recap.

Day 15: Paper 6 / practical skills day

Tables, graphs, accuracy, errors, improvements, planning investigations.

Day 16: Mixed Paper 4 set (timed)

Do a full set of structured questions across topics.

Day 17: Mixed Paper 2 set (timed)

Two MCQ sections back-to-back; analyse wrong answers.

Day 18: Full Paper 4 (timed)

Mark it and rewrite weak answers in mark-scheme language.

Day 19: Full Paper 2 (timed)

Track topics you miss most and list them.

Day 20: Fix day

Target your top 3 weak areas with topical sets and re-teach yourself the method.

Days 21–30: Score-building phase (papers + targeted fixes)

Goal: convert weaknesses into predictable marks.

Days 21, 23, 25, 27: Full Paper 4 (timed)

After marking, pick five questions you lost marks on and redo them cleanly.

Days 22, 24, 26, 28: Full Paper 2 (timed)

Make an “MCQ traps” list: careless reading, unit errors, wrong trend reasoning, wrong electrode product.

Day 29: Practical paper (5 or 6) + qualitative analysis drill

Do one full practical paper, then spend 30 minutes on tests for ions and gases.

Day 30: Final consolidation

  • One light Paper 2 set (not exhausting)
  • One short Paper 4 section
  • Read your mistake log
  • Rewrite your one-page exam sheet from memory

High-impact methods (these move marks fast)

1) The 6-line mole layout

Balanced equation → mole ratio → convert given to moles → apply ratio → convert to asked quantity → units.

2) The electrolysis rule sheet

List ions present → decide molten/aqueous → predict products at electrodes → write half-equations.

3) The salt prep decision tree

Titration vs excess solid vs precipitation, based on solubility.

4) The “because” rule for explanations

No explanation answer is complete without the reason linked to particles, electrons, bonding, or collisions.

If you’re short on time each day (60-minute version)

  • 20 mins MCQs
  • 30 mins Paper 4 questions
  • 10 mins tests / mistake log

Do that daily for 30 days and your accuracy will climb even if study time is tight.

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