Chemistry Ozone layer is present in Troposphere Stratosphere Ionosphere Exosphere Troposphere Stratosphere Ionosphere Exosphere ANSWER DOWNLOAD EXAMIANS APP
Chemistry When conc. H2SO4 is added to dry KNO3, brown fumes are evolved. These fumes are due to N2O SO2 NO2 SO3 N2O SO2 NO2 SO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Match the List-I with List-II and select the correct answer using the codes given below the listsList-I (Green house gas)List-II(Major source)F.Carbondioxide1.Enteric fermentation in cattleG.Methane2.Burning of fossilH.Chloroflro carbons3.Mercury compounds in waste waterJ.Nitrous oxide4.Nylon production 5.Air conditioner and refrigeration unitsCodes :FGHJA.2154B.3421C.3241D.1234 C B A D C B A D ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical substance present in bones and teeth is Calcium borate Calcium phosphate Calcium chloride Calcium sulphate Calcium borate Calcium phosphate Calcium chloride Calcium sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Food cans are coated with tin and not with zinc because Zinc is costlier than tin Zinc is less reactive than tin Zinc has a higher melting point than tin Zinc is more reactive than tin Zinc is costlier than tin Zinc is less reactive than tin Zinc has a higher melting point than tin Zinc is more reactive than tin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Threshold limit value of copper in the atmospheric air is 5.0 mg/m3 0.001 mg/m3 1.0 mg/m3 0.01 mg/m3 5.0 mg/m3 0.001 mg/m3 1.0 mg/m3 0.01 mg/m3 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS