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Guys, how do we distinguish between hydrogen and oxygen with our observations? Like i doubt i'll have time to carry out the actual tests so like how will i know which gas it is? If like OH then what would it be?
guys it depends on the reagents you are using... Since the question paper guides us thoroughly, for instance, if we are asked to use Al foil and OH- then we can expect NH3 only, no other gas gets liberated with Al and OH-. If we are using dilute acids, then it could either be CO2 or SO2, if you are using dilute acids, keep a strip of filter paper moist with potassium manganate (VII), place the bung on test tube and wait for gas to collect, then test for SO2, if it's negative, you can immediately put the delivery tube of limewater, I think we get that ready-made. NO is also liberated by dilute acids, but since it immediately oxidizes to NO2, the brown color is evident.The sequence of gas tests? We can distinguish ammonia due to its smell but, how about the others?
And O2 is given off when we use H2O2 and H2 if we are using metal+ acid.