The table pairs each petroleum fraction with a use. Which row is correct? row fraction use A bitumen fuel for cars B diesel oil fuel for lorries C refinery ...
Question 1 Report
The table pairs each petroleum fraction with a use. Which row is correct?
| row | fraction | use |
| A | bitumen | fuel for cars |
| B | diesel oil | fuel for lorries |
| C | refinery gas | surfacing roads |
| D | kerosene | lubricating engines |
Answer Details
The correct pairing is diesel oil with fuel for lorries. Diesel oil is a middle fraction of moderately long chains, so it is a liquid that vaporises enough to burn in a compression engine while still being dense in energy per litre, which suits heavy road transport.
The other pairings swap the ends of the column. Bitumen is the involatile residue used for road surfacing, so it cannot fuel a car; that job belongs to gasoline. Refinery gas is the most volatile fraction and is sold as bottled gas, not spread on roads. Kerosene is a fuel for aircraft, while lubricating engines is the job of the lubricating oil fraction, which is thicker and does not burn.
Check each row against chain length before selecting: uses follow volatility and viscosity.
Download The App On Google Playstore
Everything you need to excel in your exams
