Tests for Gases

Question 1

What four gases can you use a test to see if they are present in a testube?

Answer 1

1. Chlorine
2. Oxygen
3. Carbon Dioxide
4. Hydrogen

Question 2

How can you test to see if chlorine is present?

Answer 2

Use a piece of damp litmus paper, if it bleaches it there is chlorine present

Question 3

How can you test to see if Oxygen is present?

Answer 3

If you put a glowing splint inside a testube of oxygen the oxygen will relight the glowing splint

Question 4

How can you test to see if Carbon Dioxide is present?

Answer 4

if you push carbon dioxide through into calcium hydroxide it will turn the calcium hydroxide cloudy

Question 5

How can you test to see if Hydrogen is present?

Answer 5

light a splint and hold at the end of the test the hydrogen will light the splint very quickly causing it to make a squeaky pop sound