1.

Read the following statements carefully.X: It is a fossil fuel used in thermal power plants to produce electricity.Y: It is a porous, black and almost pure form of carbon.Z: It is a mixture of about 200 substances. X, Y and Z are respectively

A. Petroleum, coal gas, coke
B. Coal, coke, coal tar
C. CNG, bitumen, diesel
D. Coal gas, petrol, paraffin wax.
Answer» C. CNG, bitumen, diesel


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