Chemistry Earth’s atmosphere is an envelope of gases extending to a height of 100 km 300 km 200 km 150 km 100 km 300 km 200 km 150 km ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that usually causes explosions in coal mines is Carbon monoxide Hydrogen Methane Air Carbon monoxide Hydrogen Methane Air ANSWER DOWNLOAD EXAMIANS APP
Chemistry The Bhopal gas tragedy was caused by the gas Methyl Cyanide Methyl chloride Methyl Iso Cyanide Methyl Iso Cyanate Methyl Cyanide Methyl chloride Methyl Iso Cyanide Methyl Iso Cyanate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Rutherford’s scattering experiment proved the presence of Neutrons in atoms Nucleus in atoms Electrons in atoms Atoms in all matter Neutrons in atoms Nucleus in atoms Electrons in atoms Atoms in all matter ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone consists of Oxygen only Hydrogen and Carbon Oxygen and Carbon Oxygen and Nitrogen Oxygen only Hydrogen and Carbon Oxygen and Carbon Oxygen and Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry In drinking water supply, which of the following treatments is not involved Softening Coagulation Sedimentation Disinfection Softening Coagulation Sedimentation Disinfection ANSWER DOWNLOAD EXAMIANS APP
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