Practical P2 - Tests For Gases

Question 1

whats the test for chlorine
2 points

Answer 1

1) it bleaches damp litmus paper white
2) if you use blue litmus paper it could turn red for a second because chlorine solution is acidic

Question 2

whats the test for oxygen

Answer 2

put a glowing splint inside a test tube with oxygen and it will relight

Question 3

whats the test for carbon dioxide

Answer 3

bubbling CO2 through limewater turns it cloudy

Question 4

whats the test for hydrogen

Answer 4

hold a burning splint at the open end of a test tube, if there’s hydrogen then there will be a squeaky pop noise