ICSE Class 8 Chemistry — Important Questions 2026
Most important questions for ICSE Class 8 Chemistry board exam 2026. Chapter-wise questions with marking scheme and expected topics.
Quick Summary
This page covers the most important questions for ICSE Class 8 Chemistry board exam 2026, based on previous year question papers and expected topics. Focus on these for maximum marks.
How to Use Important Questions
- Start with high-weightage chapters — focus on chapters that carry the most marks in the exam.
- Practice writing answers — don't just read; write out answers within the time limit to build speed.
- Cross-reference with syllabus — ensure every chapter is covered by checking the syllabus page.
- Revise with notes — after practising, use revision notes for quick recap before the exam.
Chapter-Wise Important Questions — 9 Chapters
Focus on high-weightage chapters first. Each chapter below lists the types of questions frequently asked in ICSE board exams.
Matter
43 questionsAccording to the kinetic theory of matter, what happens to the intermolecular force of attraction and the kinetic energy of particles when a solid is gradually heated until it becomes a gas?
Robert Brown observed pollen grains moving in a zig-zag pattern in water. Which of the following CORRECTLY explains why the pollen grains move in an irregular (zig-zag) pattern and NOT in a straight line?
LPG (Liquefied Petroleum Gas) is stored in cylinders in liquid state under normal conditions it is a gas. Which combination of conditions is used to keep it in liquid state inside the cylinder?
In the experiment with baking soda and vinegar in a zip-lock bag, why is it ESSENTIAL to seal the bag immediately after adding the baking soda?
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Physical and Chemical Changes
43 questionsWhich of the following correctly distinguishes a chemical change from a physical change?
Sublimation of camphor is considered a physical change because:
During photosynthesis, plants use CO₂, water, and sunlight to prepare food. In terms of energy, photosynthesis is best classified as:
Which of the following is an example of a SLOW change?
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Elements, Compounds and Mixtures
44 questionsWhich of the following is a heterogeneous mixture?
The process of distillation is best used to separate:
Which of the following elements is a metalloid?
A mixture of ammonium chloride and common salt can be separated by:
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Where can I find ICSE Class 8 Chemistry Important Questions?
This page provides important questions for ICSE Class 8 Chemistry for the 2026 board exam. For chapter-by-chapter study help including summaries, quizzes, and flashcards, try Super Tutor.
Is ICSE Class 8 Chemistry easy to score in?
Chemistry is one of the scoring subjects in ICSE Class 8 if prepared well. Focus on understanding concepts, practising problems regularly, and revising key formulas. Most students who follow a structured study plan score above 80%.
How to prepare for ICSE Class 8 Chemistry board exam?
Start by understanding the complete syllabus. Then focus on important questions from each chapter. Use revision notes for quick review before exams. Follow a study plan that covers all chapters with dedicated revision time.
How many questions come from each chapter in ICSE Class 8 Chemistry?
The question paper distribution varies each year, but certain chapters consistently carry more marks. Check the marks distribution section above for chapter-wise weightage based on previous year patterns.
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ICSE Class 8
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