Describe a test for oxygen?
2 Answers
A glowing splint relights itself in oxygen gas.
Explanation:
When you have created oxygen gas, you can do the following test.
Light a splint, but let it sit for a while until it almost burns out. When it is glowing faintly, put the splint in the test tube with oxygen. The splint should start glowing and burning again. If it does, then oxygen gas is present and the test for oxygen is positive. This is because oxygen helps in keeping the combustion reaction "alive".
You might want to watch a video of the test:
See the explanation
Explanation:
You want to test whether the released gas is oxygen or not?
Bring a burning matchstick near the evolving gas.
If the flames glow more brightly , the evolved gas is oxygen.
This is because oxygen is a supporter of combustion.
It is also odourless and colorless.
In this way , you can test whether the evolved gas is oxygen or not.
