Chemistry The gas used to extinguish fire is Carbon monoxide Nitrogen Carbon dioxide Neon Carbon monoxide Nitrogen Carbon dioxide Neon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The monomer of polythene is ethyl alcohol vinyl chloride ethylene None of these ethyl alcohol vinyl chloride ethylene None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical name of ‘Common salt’ is Calcium chloride Sodium nitrate Ammonium chloride Sodium chloride Calcium chloride Sodium nitrate Ammonium chloride Sodium chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry Earth’s atmosphere is an envelope of gases extending to a height of 150 km 200 km 300 km 100 km 150 km 200 km 300 km 100 km ANSWER DOWNLOAD EXAMIANS APP
Chemistry The depletion in Ozone layer is caused by ________ . Methane Chlorofluorocarbons Nitrous oxide Carbon dioxide Methane Chlorofluorocarbons Nitrous oxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas causing acid rain in an industrial area is Sulphur dioxide Methane Carbon dioxide Carbon monoxide Sulphur dioxide Methane Carbon dioxide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
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