Why is H2S not collected over mercury?
Answer: H2S is not collected over mercury. Because H2S reacts with mercury to produce black coloured mercuric sulphide compound.
Hg + H2S = Hgs + H 2 ↑
Answer: H2S is not collected over mercury. Because H2S reacts with mercury to produce black coloured mercuric sulphide compound.
Hg + H2S = Hgs + H 2 ↑