Tests for gas and flame tests

Question 1

Test for Ammonia (NH3)

Answer 1

Damp red litmus paper turns blue

Question 2

Test for Carbon Dioxide (CO2)

Answer 2

Bubble gas through limewater - from colour less to cloudy

Question 3

Test for Chlorine (Cl2)

Answer 3

Turns blue litmus red

Question 4

Test for Hydrogen (H2)

Answer 4

Place lighted splint, makes squeaky pop

Question 5

Test for Oxygen (O2)

Answer 5

Place glowing splint, splint relights

Question 6

Potassium over flame

Answer 6

Lilac

Question 7

Sodium over flame

Answer 7

Yellow

Question 8

Calcium over flame

Answer 8

Orange - Red

Question 9

Copper over flame

Answer 9

Blue - green

Question 10

Lithium over flame

Answer 10

Red