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Combustion and Flame Summary: In the context of CLASS 8, Combustion and Flame is a high weightage topic. The examination typically tests this concept via MCQ questions.✨ 6 core subtopics covered in the latest syllabus.
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The key subtopics in Combustion and Flame are: Combustion – types (rapid, spontaneous, explosive), Ignition temperature & inflammable substances, Calorific value of fuels & comparison, Structure of a candle flame (dark inner cone, luminous zone, non-luminous outer zone), Fire control – fire extinguishers & removing fuel/oxygen/heat, Burning of fuels & air pollution. Focus on these for CLASS 8 preparation.
Based on past paper analysis, Combustion and Flame typically has 3-4 questions in CLASS 8. Weightage: High.
Combustion and Flame questions are typically MCQ format. Focus on conceptual clarity and elimination technique.