Question

Number of carbon atoms in kerosene is:

• A. \(C_{17} - C_{20}\)
• B. \(C_{12} - C_{16}\)
• C. \(C_{20} - C_{25}\)
• D. \(C_{25} - C_{30}\)

Hint:

Kerosene range: \(C_{12} - C_{16}\) (medium chain hydrocarbons).

Answer 1

The Correct Option is B

Kerosene is a type of hydrocarbon fuel typically derived as a refinery fraction of crude oil. Its chemical composition can vary, but kerosene generally consists of a range of hydrocarbons.

The hydrocarbons in kerosene are mainly composed of alkanes and are characterized by the number of carbon atoms in their molecular structure. Specifically, kerosene is known to contain hydrocarbons in the range of \(C_{12}\) to \(C_{16}\). This means that its molecules have between 12 and 16 carbon atoms.

Let's analyze the given options to determine the correct range:

• \(C_{17} - C_{20}\): This range suggests hydrocarbons with 17 to 20 carbon atoms, which typically belong to diesel or heavier oils.
• \(C_{12} - C_{16}\): This is the correct range for kerosene, encompassing hydrocarbons with 12 to 16 carbon atoms.
• \(C_{20} - C_{25}\): Hydrocarbons in this range are mostly found in lubricating oils or even heavier fractions.
• \(C_{25} - C_{30}\): This range denotes hydrocarbons usually found in wax or heavy lubricating oils.

Therefore, the correct answer is that kerosene contains hydrocarbons with 12 to 16 carbon atoms, which corresponds to the option: \(C_{12} - C_{16}\).