Chemistry When conc. H2SO4 is added to dry KNO3, brown fumes are evolved. These fumes are due to SO2 NO2 SO3 N2O SO2 NO2 SO3 N2O ANSWER DOWNLOAD EXAMIANS APP
Chemistry The green colour seen in firework displays is due to the chloride salt of : Sodium Barium Strontium Calcium Sodium Barium Strontium Calcium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following forms of phosphorus is most reactive? White phosphorus Black phosphorus Violet phosphorus Red phosphorus White phosphorus Black phosphorus Violet phosphorus Red phosphorus ANSWER DOWNLOAD EXAMIANS APP
Chemistry The lowest layer of earth's atmosphere is Mesosphere Ionosphere Troposphere Stratosphere Mesosphere Ionosphere Troposphere Stratosphere ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrification is the biological process of converting Ammonia into N2 N2 into nitrate Ammonia into nitrite N2into nitrite Ammonia into N2 N2 into nitrate Ammonia into nitrite N2into nitrite ANSWER DOWNLOAD EXAMIANS APP
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