Chemistry The gas that usually causes explosions in coal mines is Hydrogen Carbon monoxide Air Methane Hydrogen Carbon monoxide Air Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is used in the manufacture of fertilizers ? Potassium Fluorine Aluminium Lead Potassium Fluorine Aluminium Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silicon is used in Semiconductors Transistors All of these Solar energy devices Semiconductors Transistors All of these Solar energy devices ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the mass percentage of oxygen in carbon dioxide (CO2) 0.658 0.509 0.305 0.727 0.658 0.509 0.305 0.727 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Physico-chemical characteristics of water in water sources undergo changes due to Auatic fungi Evapotranspiration Effluents Aquatic macrophytes Auatic fungi Evapotranspiration Effluents Aquatic macrophytes ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following is a carbohydrate ? Turpentine Cane-sugar Hydrogen peroxide Nylon Turpentine Cane-sugar Hydrogen peroxide Nylon ANSWER DOWNLOAD EXAMIANS APP
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