Products of Which is Known as ‘Black Gold’?
Products of which one of the following are known as ‘Black Gold’?
- Petroleum
- Copper
- Coal
- Gold
Answer: (1) Petroleum
Products of petroleum is known as ‘Black Gold’. It is known as crude oil. It exits in the upper strata of some areas of the earth’s crust. It contains the Darius hydrocarbons and alkane series. It is liquid form at the room temperature.