How do you distinguish between the gases H2 and No2?

Answer 1

okay, we can see in the other way, if you have enough chemicals to use for those (H2 and H2S) --method 1: you can use your nose to smell it, the H2S has the smell, like ... rotten eggs, smell it and you will see, lol, but especially that is really harmful, the other one is H2

--method 2: you can use CuO (black) include heat, so with heat, the H2 makes the CuO turn red, because H2+CuO --> Cu+ H2O, because the red color is the color of Cu, the other one is H2S

--method 3: we use the H2S , we put the AgNO3 (aq) we can see the H2S reacts with the AgNO3 and we see the black color, because AgNO3 + H2S --> Ag2S + 2HNO3, the black color is the color of Ag2S after reaction, with H2, it can not react with AgNO3, I'm not sure about this one because, if H2 reacts with AgNO3 , the products are HNO3 and Ag, but HNO3 is the strong acid, so the products will become the reactants, so jsut look the black color in the test tube which belong to the Ag2S

we have many other ways to distinguish these one, but with me these methods is enough for you to be easy to distinguish H2 and H2S

Answer 2

You can distinguish between H2 and NO2 by performing a simple flame test. When H2 gas is ignited, it burns with a blue flame, while NO2 does not burn and has no color in a flame test. Additionally, NO2 has a pungent smell, unlike H2, which is odorless.

Answer 3

H2 is colorless and odorless; where as NO2 is brown, pungent, and toxic

Answer 4

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