How to test for gases

Question 1

How do we test for chlorine ?

Answer 1

Place gas in test tube take litmus paper and dampen, put into test tube if chlorine is present it turns blue to white

Question 2

How do we test for oxygen ?

Answer 2

we need a glowing splint, get gas place in tube, if oxygen is present it will light up

Question 3

What is the test for hydrogen ?

Answer 3

You need a lit splint move towards gas if you here a pop it contains gas

Question 4

How to test carbon dioxide ?

Answer 4

Gas sample in tube need calcium hydroxide in another the sodium hydroxide bubbles and if it is carbon dioxide it will go cloudy