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ICSE exams are undergoing, and Class 10 Chemistry (Science Paper 2) paper is scheduled for Wednesday, March 11, 2026 from 11 AM. It gets important to follow a quick revision to stay exam ready. This is why we have shared a list of ICSE Chemistry previous year question papers for a last minute preparation to help students score well in the exam. The exam paper carries 80mark theory and assesses a wide range of topics, from the complexities of Periodic Trends and Chemical Bonding to the commercial uses of Compounds and Organic Chemistry. Candidates can improve their ability to offer exact chemical observations in Section B by mimicking the 2-hour exam environment with former exams. Read further to access the ICSE Class 10 Chemistry Previous Year Question Papers and direct links to download the PDF from here.
Also check: ICSE Date Sheet 2026
ICSE Class 10 Chemistry Exam 2026: Key Highlights
From the table shared below students can find an overview of ICSE Class 10 Chemistry exam details.
| Feature | Details |
| Total Marks | 100 Marks (80 Theory + 20 Internal) |
| Theory Duration | 2 Hours (+ 15 minutes reading time) |
| Pass Criteria | Minimum 33% aggregate |
| Official Portal |
ICSE Class 10 Chemistry Question Paper Pattern 2026
Here you can find ICSE Chemistry question paper pattern for the 2026 exam. This includes marking distribution and topic-wise distribution.
| Assessment Type | Marks | Duration |
| Theory Examination | 80 | 2 Hours (+15 min reading time) |
| Internal Assessment (Practical) | 20 | School-based evaluation |
| Total Marks | 100 |
ICSE Chemistry Paper Structure
| Section | Question Type | No. of Questions | Marks per Question | Total Marks |
| Section A | Very Short Answer / Objective | 8 | 1 | 8 |
| Section B | Short Answer Type I | 10 | 2 | 20 |
| Section C | Short Answer Type II | 9 | 3 | 27 |
| Section D | Long Answer Type | 3 | 5 | 15 |
| Total | 30 | 70 |
ICSE Chemistry Topic Wise-Structure
| Section | Requirement | Question Types | Total Marks |
| Section A | Compulsory | 15 MCQs, identifying substances, balancing equations, and observations. | 40 |
| Section B | Choice-based | Students choose any 4 out of 6 long-form questions (10 marks each). | 40 |
| Total | 80 |
You may like: ICSE Class 10 Specimen Papers 2026
Download ICSE Chemistry Previous Year Question Papers (PDF)
Given here are ICSE Chemistry Previous yeast question papers from the year 2017 to 2024. Students can use these direct links to download the question paper and practice for the Chemistry exams. These question papers will provide a detailed understanding of marking scheme, paper pattern and question repetitions.
ICSE Chemistry Exam 2026 Important Topics For Last Minute Practice
High-Weightage Chapters
Students can prioritise these topics to score well in the exam. Here you can find mark distribution as per topic distribution.
1. Compounds: (Carries 15-20 Marks) This is the largest unit. Concentrate on the laboratory preparation, collection methods, and specific reactions for ammonia (Haber's Process), nitric acid (Ostwald Process), HCl, and sulphuric acid (Contact Process).
2. Organic Chemistry: (Carries 12-15 marks) Understand IUPAC nomenclature, structural formulas (up to 5 carbons), and major reactions (addition, substitution, and combustion) of alkanes, alkenes, and alkynes.
3. Mole Concept & Stoichiometry: (Carries 10-12 Marks) Solve numerical problems using Gay-Lussac's Law, Avogadro's Law, and determining empirical and molecular formulas.
Important Topics For Last Minute Practice
Students can use this distribution shared in a table to help prepare for the upcoming exam and use it for quick revision of these key topics.
| Chapter | Must-Know Concepts |
| Periodic Table | Trends in atomic size, ionization potential, electron affinity, and electronegativity (across periods and down groups). |
| Chemical Bonding | Electron dot structures for ionic (NaCl, MgCl2, CaO) and covalent compounds. |
| Electrolysis | Detailed study of molten Lead Bromide, acidified water, and aqueous Copper Sulphate (with active/inert electrodes). Memorize observations at the cathode and anode. |
| Analytical Chemistry | Distinctive tests for cations using Sodium Hydroxide and Ammonium Hydroxide. |
| Metallurgy | The extraction of Aluminium (Hall-Héroult process) and common alloys like Solder, Brass, and Bronze. |
Recommended: ICSE Class 10 Sample Papers 2024-25
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