Testing for gases

• What is the test for hydrogen

  • Light a splint

  • Hold the burning splint over the test tube

  • Will produce squeaky pop sound if present
• What is the test for oxygen

  • Light a splint

  • Blow it out

  • If present, oxygen will relight glowing splint
• What is the test for Carbon Dioxide

  • Fill test tube with limewater

  • Bubble through It

  • Will turn cloudy
• What is the test for chlorine

  • Add litmus paper to test tube

  • Bleaches blue litmus paper if present ( turns white )