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Science

Products from rocks

Fuels from crude oil - Test

1.

What do we call the compounds that contain only carbon and hydrogen atoms?

2.

Which of the following describes the top of an oil fractionating column?

3.

What happens to a liquid during its separation from a mixture by distillation?

4.

In comparison with large hydrocarbons, how would you describe small hydrocarbons?

5.

What is the general formula for alkanes?

6.

How can alkanes be described?

7.

Which gas is not formed by the combustion of hydrocarbons?

8.

Which of these gases is mainly responsible for acid rain?

9.

What is caused by the release of carbon dioxide into the atmosphere?

10.

What causes global dimming?