Chemistry For extinguishing fire, we use Hydrogen Carbon Monoxide Carbon Dioxide Marsh gas Hydrogen Carbon Monoxide Carbon Dioxide Marsh gas ANSWER DOWNLOAD EXAMIANS APP
Chemistry The greenhouse effect is caused by the higher level of which gas in the atmosphere ? Nitrous oxide Carbon dioxide Carbon monoxide Sulphur dioxide Nitrous oxide Carbon dioxide Carbon monoxide Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used as a sowing agent in the preparation of soft drinks? Phosphoric acid Phosphorus acid Boric acid Salicylic acid Phosphoric acid Phosphorus acid Boric acid Salicylic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following chemical materials is responsible for the depletion of ozone layer in the atmosphere ? Carbon dioxide Nitrous oxide Sulphur dioxide Chlorofluorocarbon Carbon dioxide Nitrous oxide Sulphur dioxide Chlorofluorocarbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry When conc. H2SO4 is added to dry KNO3, brown fumes are evolved. These fumes are due to NO2 N2O SO2 SO3 NO2 N2O SO2 SO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of water in nature is River water Rain water Lake water Sea water River water Rain water Lake water Sea water ANSWER DOWNLOAD EXAMIANS APP
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