what is the test for oxygen gas?

[DoberRotti2011]

what is the test for hydrogen?
what is th test for carbon doixide?

[webbo3]

A lighted taper ( i think thats what they were called).

If oxygen is present the flame will get bigger and flare up.

If carbon dioxide is present the flame will go out.

I think this is correct from what i remember at school many many years ago.


Dave.

[redcrx]

hydrogen and lighted taper makes a squeaky pop if memory serves me right

[ChuckFickens]

It's not a lit taper for oxygen it's one that's been blown out and is glowing, when in the presence of pure oxygen it will relight.

[Ankou]

hydrogen--use a lighted splint...a pop sound is heard
oxygen-- use a glowing splint...oxygen will relight the splint
carbon dioxide--use lime water (calcium hydroxide)...it will turn cloudy or milky

(all nicked from another site)

[factor-fiction]

Good answers.
Research wasn't this easy when I was a student.

[webbo3]

I did say i was school a long time ago.


Dave.

[TonyV]

As others have said
pure oxygen will reignite a glowing taper
Carbon Dioxide will put out a lit taper

[Lborobrewer]

The definitive test for Carbon Dioxide is lime water. A lighted splint being extinguished cannot distinguish between CO2, Nitrogen or any of the inert gases amongst others.