Chemistry The water pollution in river is measured by the dissolved amount of Oxygen Nitrogen Ozone Chlorine Oxygen Nitrogen Ozone Chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry One property of ammonia is Its aqueous solution turns red litmus blue It is insoluble in water It is a yellowish gas It is a odourless gas Its aqueous solution turns red litmus blue It is insoluble in water It is a yellowish gas It is a odourless gas ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following coal contains 90 per cent of carbon? Peat Bitumen Anthracite Lignite Peat Bitumen Anthracite Lignite ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main active constituent of tea and coffee is chlorophyll nicotine aspirin caffeine chlorophyll nicotine aspirin caffeine ANSWER DOWNLOAD EXAMIANS APP
Chemistry The maximum number of covalent formed by nitrogen is 1 4 3 2 1 4 3 2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process of removing calcium and magnesium from hard water is known as Sedimentation Water softening Flocculation Filtration Sedimentation Water softening Flocculation Filtration ANSWER DOWNLOAD EXAMIANS APP
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