Synthetic petrol and kerosine can be made form coal by passing one of the following gases under heat and pressure over-coal.

Nitrogen

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Hydrogen

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Oxygen

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Carbon dioxide

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Solution

The correct option is B Hydrogen
When coal is passed through hydrogen under heat and pressure it produces synthetic petrol and kerosene which is used for household fuel.

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Similar questions

The heat energy obtained on burning 2 kg of hydrogen, coal, and petrol are given below:

Hydrogen- $3 \times 10^{8}$ J

Coal- $6 \times 10^{7}$ J

Petrol- $9 \times 10^{7}$ J

Arrange these fuels in the ascending order of their calorific values.

State whether the following statements are true or false :

(a) Coke is almost pure form of carbon.

(b) Coal tar is a mixture of various substances.

(d) CNG is more polluting than petrol.

(e) Fossil fuels can be made in the laboratory.

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