On exposure to hydrogen sulphide; moist lead (II) ethanoate paper turns By: Sunday|Published on: Apr 20|Categories: Chemistry NECO| 0 comments A. black B. blue C. green D. white E. yellow Correct Answer: Option A – black Users Also Read These:A transformer is rated 240V. If the primary coil is…Hydrogen sulphide gas can act as?A transformer has 300 turns of wire in the primary…Which of the following gases has a characteristic…Chlorine gas turns damp starch-iodide paper?SEE ALSO The high boiling point of hydrogen fluoride can be explained in terms of