Chemistry Practicals & Tests Flashcards
1
Q
Describe the chemical test for hydrogen
Insert a lit splint into a test tube of gas?
A
A ‘squeaky pop’ will be heard if hydrogen is present.
2
Q
Describe the chemical test for carbon dioxide?
A
Bubble the gas through limewater (calcium hydroxide).
Limewater turns cloudy if carbon dioxide is present.
3
Q
What is the chemical test for chlorine?
A
Damp litmus paper placed into a test tube of gas. If chlorine is present, the litmus paper will turn red then white due to the bleaching effect of chlorine.
4
Q
What is the chemical test for oxygen?
A
Insert a glowing splint into a test tube of gas. If oxygen is present, the splint will ignite.
