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6. Combustion And Flame Class 8 SCIENCE Solutions English Medium-Text Book Exercise
6. Combustion And Flame Class 8 SCIENCE Solutions English Medium-Text Book Exercise Get chapter-wise detailed explanations, step-by-step answers, important questions and exam-ready study material in Hindi and English medium.
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6. Combustion And Flame Class 8 SCIENCE Solutions English Medium-Text Book Exercise
NCERT Solutions for Class 8 are specially prepared according to the latest CBSE syllabus (2026-27) to help students understand every concept clearly. These solutions provide step-by-step explanations, accurate answers, and exam-oriented guidance for all chapters. Class 8 students can improve their problem-solving skills, strengthen conceptual understanding, and prepare confidently for school as well as board examinations. All questions are solved in a simple and easy-to-understand language for both Hindi and English medium learners.
6. Combustion And Flame Class 8 SCIENCE Solutions English Medium-Text Book Exercise
NCERT Solutions Class 8 SCIENCE English Medium
6. Combustion And Flame
Topic: Text Book Exercise
Text Book Exercise:
Q6. Make a labelled diagram of a candle flame.
Answer : Fig. 6.1 A candle flame
Q7. Name the unit in which the calorific value of a fuel is expressed.
Answer : The calorific value of a fuel is expressed in kilojoules per kg (kJ/kg).
Q8. Explain how CO2 is able to control .
Answer : CO2 being heavier than oxygen, covers the fire like a blanket. Since the contact between the fuel and oxygen is cut off, the fire is controlled. The added advantage of CO2 is that in most cases it does not harm the electrical equipment.
Q9. It is difficult to burn a heap of green leaves but dry leaves catch fire easily. Explain.
Answer : Green leaves contain lot of water. So, when we try to burn green leaves, water contained in the leaves cools the combustible materials (leavss), so thaqt its temperature is brought below its ignition temperture. This prevents the burning of green leaves. In case of dry leaves, they do not contain any water. So when buring process starts, its temperature is raised drastically above its ignition temperature and the leaves catch fire easily.
Q10. Which zone of a flame does a goldsmith use for melting gold and silver and why?
Answer : The goldsmith uses the outermost zone of a flame with a metallic blow-pipe for melting gold and silver. The flame in the outermost zone has the highest temperature sufficient to melt the gold and silver.
Q11. In an experiment 4.5 kg of a fuel was completely burnt. The heat produced was measured to be 180,000 kJ. Calculate the calorific value of the fuel.
Answer : Calorific value of fuels
= kilojoules/kg = (Total heat produced/Total mass burent)
Here, the mass of fuel =4.5 kg
The heat produced =180,000 kJ.
Calorific value of fuel =180,000 kJ/ 4.5 kg
= 40,000 kJ per kg.
Q12. Can the process of rusting be called combustion? Discuss.
Answer : Yes, process of rusting can be called combution, in fact, slow combution, because rusting also takes place in the air (O2) in presence of humidity in the atmosphere.
Q13. Abida and Ramesh were doing an experiment in which water was to be heated in a beaker. Abida kept the beaker near the wick in the yellow part of the candle flame. Ramesh kept the beaker in the outermost part of the flame. Whose water will get heated in a shorter time?
Answer : The water of Ramesh,s beaker will get heated with a shorter time because the outermost part of the flame the hottest.
All Topics From 6. Combustion And Flame
See other sub-topics of this chapter:
1. Chapter Review 2. Text Book Exercise 3. Text Book Exercise 4. Additional Questions With Solutions 5. Additional Questions With SolutionsNCERT Solutions Class 8 Hindi and English Medium – Complete Study Material
NCERT Solutions Class 8 students ke liye specially CBSE latest syllabus (2026-27) ke according prepare kiye gaye hain. Yeh solutions Hindi aur English medium dono ke liye available hain, jisse har student apni language preference ke hisaab se padh sakta hai. Har chapter ke sabhi prashnon ke step-by-step answers diye gaye hain jo concept clarity aur exam preparation me madad karte hain.
Chapter-Wise Detailed Explanations
Class 8 ke liye diye gaye Chapter Wise NCERT Solutions me har question ka detailed aur easy explanation diya gaya hai. Chahe aap CBSE Board Exam Preparation kar rahe ho ya school test ke liye revise kar rahe ho, yeh solutions aapko complete understanding denge. Har answer simple language me likha gaya hai jisse students concepts ko easily grasp kar saken.
Hindi and English Medium Support
Students Hindi aur English medium dono me NCERT Book Solutions Class 8 access kar sakte hain. Yeh dual language support un students ke liye helpful hai jo apni regional language me better samajhna chahte hain. Sabhi answers CBSE Latest Syllabus 2026-27 ke anusaar update kiye gaye hain.
Important Features of NCERT Solutions
- Class 8 NCERT Solutions PDF
- CBSE Class 8 Study Material
- NCERT Book Questions and Answers
- Exam Oriented Important Questions
- Step-by-Step Detailed Solutions
- Concept Clarity and Revision Notes
Why Students Should Use NCERT Solutions?
Aaj ke competitive environment me sirf textbook padhna kaafi nahi hota. NCERT Solutions for Class 8 students ko practice aur conceptual understanding dono provide karte hain. Yeh solutions unhe exam pattern samajhne, frequently asked questions practice karne aur high score achieve karne me madad karte hain. Regular practice se students apne weak topics ko improve kar sakte hain.
Best Resource for Exam Preparation
Agar aap Class 8 CBSE Preparation ke liye ek trusted aur reliable source dhundh rahe hain, to yeh NCERT Solutions perfect choice hain. Yeh study material school exams, unit tests, half-yearly aur annual exams ke liye equally useful hai. Har chapter ke answers accurate, verified aur student-friendly format me diye gaye hain.
Isliye agar aap NCERT Solutions Class 8 Hindi and English Medium search kar rahe hain, to yahan aapko complete chapter-wise solutions milenge jo aapki academic journey ko strong aur confident banayenge.