Tests For Gases

Question 1

Test for Chlorine gas and positive result?

Answer 1

Damp blue litmus paper, bleaches it

Question 2

Test for oxygen gas and positive result?

Answer 2

Put a glowing splint inside a test tube, if oxygen is present the splint will relight

Question 3

Test for carbon dioxide gas?

Answer 3

Bubble through limewater, turns cloudy if present

Question 4

Test for hydrogen and positive result?

Answer 4

Hold a burning splint at open end of test tube, if present then squeaky pop