Compound X is a six carbon compound. When it is burnt, light is fenerated. Here, the colour of the flame is yellow because of the presence of carbon particles. Compound X cannot be *
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Answer:
When a fuel is burned the energy is released mainly as heat which can be used for various purposes like cooking, heating, etc. Most of the fuels are either free carbon or carbon compounds. They are obtained from coal,petroleum and natural gas which are also called fossil fuels because they were formed by the decomposition of the remains of the pre- historic plants and animals burned under the earth long ago.
formation of coal. It is formed by the decomposition of large land plants and trees burned under the earth millions of years ago. Due to high temperature and pressure inside the earth, and in absence of air, wood was converted into coal
formation of petroleum. it was formed by the decomposition of the remains of extremely small plants and animals burned under the sea millions of years ago. It is a dark coloured, viscous and foul smelling crude oil which is a mixture of several solid, liquid and gaseous hydrocarbons mixed with water, salt and death particles.