Material burned to prouduce heat or energy (lines 5 to 15)
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wood paper iron copper and zinc
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People generally use wood, cow dung cakes, crop residues, Kerosene oil, coke or LPG gas to cook food. In factories, we use coal or fuel oil or natural gas.
These materials have one property in common i.e., they produce heat on burning which is then put into different uses. Furthermore, some materials on burning produce flame and some do not. For example, a candle or coal gas on burning produces a flame, but not the cold or charcoal. So, let us study the chemical processes of burning and the types of flame produced during this process
These materials have one property in common i.e., they produce heat on burning which is then put into different uses. Furthermore, some materials on burning produce flame and some do not. For example, a candle or coal gas on burning produces a flame, but not the cold or charcoal. So, let us study the chemical processes of burning and the types of flame produced during this process
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