Carbon and Fossil Fuels

Methane is the smallest hydrocarbon.

Petroleum is not used as a fuel while cooking.

Coal is used in thermal power plants for heat generation.

Paraffin wax is a constituent of petroleum.

For metalling a road, bitumen is used. 

Petroleum is called 'black gold' due to its commercial importance.

Sodium nitrate is the chemical compound with the formula NaNO₃. It is a white solid which is very soluble in water. It is used as an ingredient in fertilizers, as an ingredient in smoke bombs, as a food preservative, and as a solid rocket propellant, as well as in glass and pottery enamels.

Activated carbon, also called activated charcoal, activated coal or carbo activatus, is a form of carbon that has been processed to make it extremely porous and thus to have a very large surface area available for adsorption or chemical reactions.

When coal is heated without air, it does not burn but produces many by-products. This process of heating coal in the absence of air is called destructive distillation of coal.

Petroleum refining process forms paraffin wax, which is a product made from the constituents of petroleum and is used for making candles.

This statement is correct. Coke is a pure form of carbon.

This will keep the engine running and waste fuel unnecessarily. It will deplete our fuel resources and cause wastage of a limited resource.

This is the correct option as perfumes, synthetic, dyes, plastics, explosives and paints all are manufactured with the presence of substances obtained from coal tar.

Fertiliser manufacturing industries use ammoniacal liquor, which is a by-product of coal tar, which is in turn is obtained during the destructive distillation of coal. All other products are manufactured with the use of petroleum constituents.

This is the correct answer. Methane CH₄, ethane C₂H₆ and propane C₃H₈ are found on the surface of the fossils that occur above the petroleum deposits.