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Combustion and Flame
Chemistry · CBSE Class 8 · English Medium · 30 questions and answers
Sample questions
- Q: What is combustion?
- A: A chemical process in which a substance reacts with oxygen to produce heat
- Q: What is a combustible substance?
- A: A substance that burns in air
- Q: What is a fuel?
- A: A substance that undergoes combustion to give heat
- Q: Which gas is essential for combustion?
- A: Oxygen
- Q: What is ignition temperature?
- A: Lowest temperature at which a substance catches fire
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