Which of the following is the best starting material for the preparation of oxygen? Heating of trioxonitrate (v) with? by Sunday | Jan 2 | Chemistry WAEC | 0 comments A. Pb B. Zn C. Ca D. Na Correct Answer: Option A A. Pb Users Also Read These:On heating, which of the following compounds will…In the laboratory preparation of trioxonitrate (V)…What volume of oxygen will be left unreacted when a…What is the partial pressure of oxygen at s.t.p. in…If 0.75 mole of cyclopropane and 0.66 mole of oxygen…