Test for Gases

Question 1

Ammonia

Answer 1

Method:
Put a piece of damp red litmus paper into the tube with gas in using tweezers.
Positive result:
Paper turns blue

Question 2

Carbon dioxide

Answer 2

Method:
Add limewater to test tube with gas in and shake.
Positive result:
Limewater turns cloudy

Question 3

Chlorine

Answer 3

Method:
Add a piece of damp litmus paper into tube with gas in using tweezers.
Positive result:
Paper bleaches white

Question 4

Hyrdogen

Answer 4

Method:
Place a lit splint into test tube with gas in.
Positive result:
Squeaky pop

Question 5

Oxygen

Answer 5

Method:
Place a glowing splint into test tube with gas in.
Result:
Splint relights