Chemistry Magnetite is Fe2O3 Fe3O4 2Fe2O3. 3H2O FeCO3 Fe2O3 Fe3O4 2Fe2O3. 3H2O FeCO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that causes suffocation and death when coal or coke is burnt in a closed room is Methane Carbon monoxide Ethane Carbon di-oxide Methane Carbon monoxide Ethane Carbon di-oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is secondary air pollutant ? SO2 Photochemical smog NO2 Dust particles SO2 Photochemical smog NO2 Dust particles ANSWER DOWNLOAD EXAMIANS APP
Chemistry White lung cancer' is caused by Silica Asbestos Textiles Paper Silica Asbestos Textiles Paper ANSWER DOWNLOAD EXAMIANS APP
Chemistry The items amenable to detection by soft x-rays are contrabands narcotics genuine coins from counterfeit coins lead in bullets contrabands narcotics genuine coins from counterfeit coins lead in bullets ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain is caused due to pollution of atmosphere by None of these Oxides of nitrogen and phosphorous Oxides of carbon and nitrogen Oxides of nitrogen and sulphur None of these Oxides of nitrogen and phosphorous Oxides of carbon and nitrogen Oxides of nitrogen and sulphur ANSWER DOWNLOAD EXAMIANS APP
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