One of the difference between petroleum and crude oil is crude oil is impure while petroleum pure?

Yes, that is correct. Crude oil is a mixture of various hydrocarbons and other organic compounds, along with impurities such as sulfur, nitrogen, and metals. Petroleum, on the other hand, refers to the refined products that are derived from crude oil through processes such as distillation, cracking, and purification. These refined products are typically much purer and have specific uses such as gasoline, diesel, jet fuel, and lubricants.

False