Bitesize has changed! We're updating subjects as fast as we can. Visit our new site to find Bitesize guides and clips - and tell us what you think!

Home > Science > Edexcel Science Topics > Making changes > Preparing gases and testing for them

Science

Making changes

Preparing gases and testing for them - Test

1.

Why is hydrogen collected by upwards delivery?

2.

Why is carbon dioxide collected by downwards delivery?

3.

Why can't ammonia be collected over water?

4.

Which of these methods is the most suitable for collecting oxygen?

5.

A test for the presence of ammonia is:

6.

A test for the presence of oxygen is:

7.

A test for the presence of chlorine is:

8.

A lighted wooden splint makes a popping sound in a test tube of gas. The gas is most likely to be: