Gas Tests

Question 1

Test of Hydrogen H2

Answer 1

Test for Hydrogen

1. When mixed with air, burns with a squeaky pop
2. Colourless gas

Question 2

Test for Carbon Dioxide CO2

Answer 2

Test for CO2

1. When bubbled thru limewater (calcium hydroxide) turns the limewater cloudy

Question 3

Test for Chlorine Cl2

Chlorine is a green poisonous gas that bleaches dyes

Answer 3

Test for Chlorine
Do via electrolysis
Turns damp indicator paper white

Question 4

Test for Oxygen O2

Answer 4

Test for Oxygen

1. Relights a flowing splint