Testing for gases

Question 1

How to test for hydrogen

Answer 1

Put a burning (on fire) splint into the gas, if it produces a squeaky pop sound, then it is hydrogen

Question 2

How to test for oxygen

Answer 2

Place a glowing (burnt but blown out) splint into the gas, if it relights then the gas is oxygen

Question 3

How to test for carbon dioxide

Answer 3

Bubble the gas through limewater, if it turns from colourless to cloudy then it is carbon dioxide

Question 4

How to test for ammonia

Answer 4

Place damp red litmus paper into the gas, if it turns blue then the gas is ammonia

Question 5

How to test for chlorine

Answer 5

Place damp litmus paper into the gas, if it turns white then the gas is chlorine