2006-07-26 21:56:17 · 4 answers · asked by digger 1 in Science & Mathematics ➔ Chemistry
H2 is a colourless gas. It burns when it gets released to the atmoshphere (but be careful - H2 burns without a flame). You can conduct some tests for confirming the release of H2.
H2S is a pungent gas with a rotten egg smell. It is also a toxic gas. You can test it with Starch for its presence.
2006-07-26 22:03:34 · answer #1 · answered by saintlameo 3 · 3⤊ 0⤋
H2 gas when exposed to flame it fire with a blue color and with a sound , but H2S gas has the odor of rotten eggs.
2006-07-27 05:06:15 · answer #2 · answered by mnasry2001 1 · 0⤊ 0⤋
H2 is odorless and H2S smells like rotten eggs.
2006-07-27 05:27:10 · answer #3 · answered by jujitsu 1 · 0⤊ 0⤋
by the smell!
see the pages for both these gases in wikipedia
There are other more erudite ways of distinguishing them such as cooling them to find boiling points/ spectroscopy/ etc. but just smell them and you will know the difference
2006-07-27 05:04:10 · answer #4 · answered by Orinoco 7 · 0⤊ 0⤋