tests for gases

Question 1

How do we test for chlorine

Answer 1

Take a piece of damp blue litmus paper and dip it in chlorine, if it turns white it’s chlorine (it might turn red at first because chlorine is acidic)

Question 2

how do we test for oxygen

Answer 2

Take a glowing splint and put it in the gas, if it relights the gas is oxygen

Question 3

how do we test for CO2

Answer 3

Bubble it through lime water, if the limewater turns cloudy it’s CO2

Question 4

what is the positive result for chlorine

Answer 4

Dampened blue litmus paper turns white

Question 5

what is the positive result for oxygen

Answer 5

Glowing splint re-lights

Question 6

how do we test for hydrogen

Answer 6

put a lit splint in hydrogen, if it makes a “squeaky pop” its hydrogen

Question 7

how do we test for ammonia

Answer 7

take some damp red litmus and if ammonia is present it will turn blue

Question 8

what is the positive result for carbon dioxide

Answer 8

limewater turns cloudy

Question 9

What is the positive result for hydrogen

Answer 9

squeaky pop when in contact with fire

Question 10

what is the positive result for ammonia

Answer 10

damp red litmus paper turns red