Chemistry In deep-sea diving, divers use a mixture of gases consisting of oxygen and Helium Nitrogen Hydrogen Argon Helium Nitrogen Hydrogen Argon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Surface water is a better source of drinking water because it is poor in Arsenic Algae Dust Bacteria Arsenic Algae Dust Bacteria ANSWER DOWNLOAD EXAMIANS APP
Chemistry An example of major air pollutant is Helium Oxygen Carbon monoxide Carbon dioxide Helium Oxygen Carbon monoxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical name of ‘Common salt’ is Calcium chloride Ammonium chloride Sodium nitrate Sodium chloride Calcium chloride Ammonium chloride Sodium nitrate Sodium chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has High nuclear charge High bond dissociation energy Stable half filled 2p sub level Smaller atomic radius High nuclear charge High bond dissociation energy Stable half filled 2p sub level Smaller atomic radius ANSWER DOWNLOAD EXAMIANS APP
Chemistry The reaction intermediate formed during the preparation of diethylether from ethanol by treatment with H2SO4 is Free radical Carbene Carbanion Carbocation Free radical Carbene Carbanion Carbocation ANSWER DOWNLOAD EXAMIANS APP
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