On exposure to hydrogen sulphide; moist lead (II) ethanoate paper turns by Sunday | Apr 20 | 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 required to supply 12 Vrms to…A transformer with 5500 turns in its primary winding…What is the molar of hydrogen sulphide gas in the…A transformer connected to a 240Vr.m.s has 3000…The primary coil of a transformer has N turns and is…