Chemistry The gas that usually causes explosions in coal mines is Air Hydrogen Methane Carbon monoxide Air Hydrogen Methane Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has High nuclear charge Stable half filled 2p sub level High bond dissociation energy Smaller atomic radius High nuclear charge Stable half filled 2p sub level High bond dissociation energy Smaller atomic radius ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element with highest first ionisation energy is Hydrogen Helium Lithium Sodium Hydrogen Helium Lithium Sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical(s) most commonly used for cloud seeding or ‘artificial rainmaking’ is/are Dry ice or frozen carbon dioxide Sodium Chloride Silver Iodide All listed here Dry ice or frozen carbon dioxide Sodium Chloride Silver Iodide All listed here ANSWER DOWNLOAD EXAMIANS APP
Chemistry The National Chemical Laboratory is situated in Pune Patna Bangalore New Delhi Pune Patna Bangalore New Delhi ANSWER DOWNLOAD EXAMIANS APP
Chemistry KMnO4 can be used as Fertilizer Disinfectant Insecticide Pesticide Fertilizer Disinfectant Insecticide Pesticide ANSWER DOWNLOAD EXAMIANS APP
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