Which of the following is a straight chain alkane composed of 4 carbon atoms that is commonly used as a fuel and aerosol propellant?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. Butane.
The straight-chain alkane composed of four carbon atoms is butane (C₄H₁₀). It is a colorless, highly flammable gas at room temperature and is commonly used as a fuel in lighters and portable stoves, as well as an aerosol propellant in spray cans. Butane belongs to the alkane family, meaning it contains only single bonds between carbon atoms. Its high energy content and easy liquefaction make it convenient for storage and transportation in pressurized containers.