Chemistry Sulphur dioxide level in the atmosphere can be reduced by using More efficient car engines Low - sulphur fuels Catalytic converters in industry Static electricity to attract it in factory chimneys More efficient car engines Low - sulphur fuels Catalytic converters in industry Static electricity to attract it in factory chimneys ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following fuels causes minimum environmental pollution? Coal Diesel Kerosene Hydrogen Coal Diesel Kerosene Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silver gets corroded due to ________ in air. Hydrogen Sulphide Carbon dioxide Nitrogen Oxygen Hydrogen Sulphide Carbon dioxide Nitrogen Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Black lung disease occurs in people working in Coal mines Organic solvents industry Paint manufacturing industry Electroplating industry Coal mines Organic solvents industry Paint manufacturing industry Electroplating industry ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron is prevented from rusting by coating with zinc. This process is called as Corrosion Reduction Sublimation Galvanisation Corrosion Reduction Sublimation Galvanisation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The manufacture of iron from iron ore involves the process of Electrolysis Fractional distillation Reduction Oxidation Electrolysis Fractional distillation Reduction Oxidation ANSWER DOWNLOAD EXAMIANS APP
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