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NCERT solutions for Science [English] Class 8 chapter 4 - Combustion and Flame [Latest edition]

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NCERT solutions for Science [English] Class 8 chapter 4 - Combustion and Flame - Shaalaa.com
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Solutions for Chapter 4: Combustion and Flame

Below listed, you can find solutions for Chapter 4 of CBSE NCERT for Science [English] Class 8.


Exercises
Exercises [Page 51]

NCERT solutions for Science [English] Class 8 4 Combustion and Flame Exercises [Page 51]

Exercises | Q 1. | Page 51

List conditions under which combustion can take place.

Fill in the blanks.

Exercises | Q 2. (a) | Page 51

Burning of wood and coal causes ______ of air.

Exercises | Q 2. (b) | Page 51

A liquid fuel, used in homes is ______.

Exercises | Q 2. (c) | Page 51

Fuel must be heated to its ______ before it starts burning.

Exercises | Q 2. (d) | Page 51

Fire produced by oil cannot be controlled by ______.

Exercises | Q 3. | Page 51

Explain how the use of CNG in automobiles has reduced pollution in our cities.

Exercises | Q 4. | Page 51

Compare LPG and wood as fuels.

Exercises | Q 5. (a) | Page 51

Give reasons.

Water is not used to control fires involving electrical equipment.

Exercises | Q 5. (b) | Page 51

Give reasons.

LPG is a better domestic fuel than wood.

Exercises | Q 5. (c) | Page 51

Give reasons.

Paper by itself catches fire easily whereas a piece of paper wrapped around an aluminium pipe does not.

Exercises | Q 6. | Page 51

Make a labelled diagram of a candle flame.

Exercises | Q 7. | Page 51

Name the unit in which the calorific value of a fuel is expressed.

Exercises | Q 8. | Page 51

Explain how CO2 is able to control fires.

Exercises | Q 9. | Page 51

It is difficult to burn a heap of green leaves but dry leaves catch fire easily. Explain

Exercises | Q 10. | Page 51

Which zone of a flame does a goldsmith use for melting gold and silver and why?

Exercises | Q 11. | Page 51

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.

Exercises | Q 12. | Page 51

Can the process of rusting be called combustion? Discuss.

Exercises | Q 13. | Page 51

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?

Solutions for 4: Combustion and Flame

Exercises
NCERT solutions for Science [English] Class 8 chapter 4 - Combustion and Flame - Shaalaa.com

NCERT solutions for Science [English] Class 8 chapter 4 - Combustion and Flame

Shaalaa.com has the CBSE Mathematics Science [English] Class 8 CBSE solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. NCERT solutions for Mathematics Science [English] Class 8 CBSE 4 (Combustion and Flame) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.

Further, we at Shaalaa.com provide such solutions so students can prepare for written exams. NCERT textbook solutions can be a core help for self-study and provide excellent self-help guidance for students.

Concepts covered in Science [English] Class 8 chapter 4 Combustion and Flame are Combustion, Precautions and Safety Measures, Types of Combustion, Flame, Fuel, Fuel Efficiency, Types of Fuel, Combustion, Precautions and Safety Measures, Types of Combustion, Flame, Fuel, Fuel Efficiency, Types of Fuel.

Using NCERT Science [English] Class 8 solutions Combustion and Flame exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in NCERT Solutions are essential questions that can be asked in the final exam. Maximum CBSE Science [English] Class 8 students prefer NCERT Textbook Solutions to score more in exams.

Get the free view of Chapter 4, Combustion and Flame Science [English] Class 8 additional questions for Mathematics Science [English] Class 8 CBSE, and you can use Shaalaa.com to keep it handy for your exam preparation.

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