Question
What is coal?
Solution
Coal is an exhaustible natural fossil fuel which is a tough, porous and black substance. It is almost pure form of carbon.
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What is coal?
Coal is an exhaustible natural fossil fuel which is a tough, porous and black substance. It is almost pure form of carbon.
Fossil fuels are ________, ________ and ________.
Process of separation of different constituents from petroleum is called __________.
Least polluting fuel for vehicle is ________.
Fossil fuels can be made in the laboratory.
CNG is more polluting fuel than petrol.
Coke is almost pure form of carbon.
Coal-tar is a mixture of various substances.
Kerosene is not a fossil fuel.
Explain why fossil fuels are exhaustible natural resources?
Describe characteristics and uses of coke.
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