Chemistry The iron ore magnetite consists of Fe2O3 3Fe2O3 .. 3H2O FeCO3 Fe3OH4 Fe2O3 3Fe2O3 .. 3H2O FeCO3 Fe3OH4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that usually causes explosions in coal mines is Carbon monoxide Hydrogen Air Methane Carbon monoxide Hydrogen Air Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metals commonly used for electroplating are Nickel, Lead and Chromium Chromium, Copper and Nickel Gold, Sodium and Potassium Gold, Sodium and Chromium Nickel, Lead and Chromium Chromium, Copper and Nickel Gold, Sodium and Potassium Gold, Sodium and Chromium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Galena is a mineral of Lead Calcium Iron Gold Lead Calcium Iron Gold ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following contains high content of lead? Coal High octane fuel Cooking gas Low octane fuel Coal High octane fuel Cooking gas Low octane fuel ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cinnabar is an ore/mineral of Lead Mercury Manganese Molybdenum Lead Mercury Manganese Molybdenum ANSWER DOWNLOAD EXAMIANS APP
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