WebFeb 24, 2024 · Science Important Questions Class 8 are given below chapter wise. Crop Production and Management Microorganisms : Friend and Foe Synthetic Fibres and Plastics Materials : Metals and Non-Metals Coal and Petroleum Combustion and Flame Conservation of Plants and Animals Cell—Structure and Functions Reproduction in Animals WebSep 4, 2024 · Answer: Flame is a region where the burning or combustion of gaseous substances take place. Question 13. Define fuel. Answer: Those substances which provide energy on burning are called ‘fuels’; e.g., coal, petroleum, LPG, etc. Question 14. Give two examples each of solid fuels, liquid fuels and gaseous fuels. Answer:
Combustion and Flames Class 8 Notes - Chapter 6 - BYJUS
WebSometimes, heat is accompanied by light, either as a flame or as a glow, during combustion. Fuel may be solid, liquid or gas. A combustion reaction maybe written as-. (a) Charcoal burns in air to give carbon dioxide and heat. C + O 2 → CO 2 + Heat. (b) Methane bums in air forming carbon dioxide, water and heat. CH 4 + 2O 2 → CO 2 + 2H 2 O ... WebMar 14, 2024 · The general structure of the flame is as shown below: The candle has a different zone. These zones are created by considering the energy created or released as heat. The candles have a total of three zones. Each zone has a characteristic colour. These zones can help us to understand the temperatures of each zone. The three zones are as … sig 716 precision marksman
Class 8 Important Questions for Science - Light …
WebApr 7, 2024 · 3)The outer zone of a flame is blue:It is a non-luminous zone.In this zone,complete combustion of the fuel takes place because there is plenty of air around it.The outermost zone has the highest … WebCombustion and Flame Class 8 Science Chapter 6 Extra Questions and Answers are provided here. We prepared these extra questions based on the latest NCERT Class 8 … WebThe word “flame’ itself comes from the Latin word “flamma”. Very simply put flames are the visible part of a combustion reaction. During combustion, … sig 556 swat patrol accessories