Chemistry Which of the following fuels causes minimum environmental pollution? Hydrogen Coal Kerosene Diesel Hydrogen Coal Kerosene Diesel ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone depletion in the atmosphere is mainly caused by Sulphur dioxide Nitrogen dioxide Chlorofluorocarbon Hydrogen sulphide Sulphur dioxide Nitrogen dioxide Chlorofluorocarbon Hydrogen sulphide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium gas is used in gas balloons instead of hydrogen gas because it is Lighter than hydrogen More abundant than hydrogen More stable Non-combustible Lighter than hydrogen More abundant than hydrogen More stable Non-combustible ANSWER DOWNLOAD EXAMIANS APP
Chemistry Air shows the property of N2 O2 None of these Both A and B N2 O2 None of these Both A and B ANSWER DOWNLOAD EXAMIANS APP
Chemistry Removal of carbon particles from air involves the principle of Electrophoresis Precipitation Filteration Sedimentation Electrophoresis Precipitation Filteration Sedimentation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ultraviolet rays can be used in water treatment as Precipitator Disinfectant Flocculator Hydrolyser Precipitator Disinfectant Flocculator Hydrolyser ANSWER DOWNLOAD EXAMIANS APP
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