When X is heated with manganese (IV) oxide, oxygen is produced X is? by Sunday | May 11 | Chemistry WAEC | 0 comments A. KCI B. KCIO3 C. CaCO3 D. ZnCO3 Correct Answer: Option B B. KCIO3 Users Also Read These:In the laboratory preparation of oxygen; dried…What volume of carbon (ll) oxide is produced by…An aluminium rod of length 1.8m at 100oC is heated…The partial pressure of oxygen in a sample of air is…The product formed when propanol is heated over a…