Test for H2S by keypoint Below is a test for H2S Pb(NO3)2(aq) + H2S(g) → PbS(s) + 2HNO3(aq) It also has a rotten egg smell. Others are Viewing: Hydrogen Sulphide (H2S) Physical Properties of H2S Chemical Properties of H2S Uses of Hydrogen Sulphide (H2S) Test For Oxygen Test For Trioxonitrates Test for Ammonia