ANS:C - Petrol

Among the options listed, Petrol (Gasoline) typically has the maximum °API gravity of all. Here's why:

• °API Gravity: API (American Petroleum Institute) gravity is a measure of how heavy or light a petroleum liquid is compared to water. Higher API gravity values indicate lighter and less dense liquids.
• Petrol (Gasoline): Gasoline has a higher °API gravity compared to diesel, kerosene, and furnace oil. Gasoline is refined to be lighter and more volatile, with a higher proportion of lighter hydrocarbons, which results in a higher °API gravity.
• Comparison with Other Options:
  • Diesel: Diesel has a lower °API gravity than gasoline because it contains heavier hydrocarbons.
  • Kerosene: Kerosene also has a lower °API gravity than gasoline. It is typically less volatile and lighter than diesel but heavier than gasoline.
  • Furnace Oil: Furnace oil (also known as fuel oil) generally has the lowest °API gravity among these options. It consists of heavier, more viscous hydrocarbons compared to gasoline, diesel, and kerosene.