Practice Exercises - 4.10 | 4. COMBUSTION AND FLAME | CBSE 8 Science
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4.10 - Exercises

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Practice Questions

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Question 1 Easy

What are the three conditions necessary for combustion?

💡 Hint: Use the acronym FOH.

Question 2 Easy

Name a solid fuel used in homes.

💡 Hint: Think about what we burn for warmth.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

Which of the following is NOT a condition for combustion?

Fuel
Oxygen
Water

💡 Hint: Recall the three elements needed.

Question 2

True or False: LPG is considered an ideal fuel due to its low ignition temperature.

True
False

💡 Hint: Think about the definition of an ideal fuel.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A fuel has a calorific value of 12,000 kJ/kg. If 3 kg of the fuel is burned completely, how much energy is released?

💡 Hint: Use the basic formula for energy.

Challenge 2 Hard

Discuss why understanding combustion is crucial for designing safety protocols in industries.

💡 Hint: Think about the role of safety equipment.

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