To which of the following forms of energy can coal be converted?

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Oil (synthetic petrol)

Coal gas

Electricity

All of the above

answer is D.

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Detailed Solution

Coal can be converted into oil, coal gas and electricity.
Coal is a complex mixture of compounds of carbon, hydrogen and oxygen, and some free carbon. Coal can be converted into other forms of energy like coal gas, electricity and oil (synthetic petrol). Coal can be converted into a gas—using lots of heat and water—and the process is called gasification. After the formation of gas from coal, it can be used to spin a gas turbine to generate electricity. Coal Conversion Process Routes. The essential feature of coal conversion by gasification and direct or indirect liquefaction is the conversion of coal into higher-grade products.
Coal is used in many other uses, which include cement production, carbon fibres and foams, medicines, tars, synthetic petroleum-based fuels, and home and commercial heating.

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