Chemistry The smog is essentially caused by the presence of O3 and N2 O2 and N2 Oxides of N and S O2 and O3 O3 and N2 O2 and N2 Oxides of N and S O2 and O3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which substance is used to retard the setting action of cement? Na2O + K2O CaSO4, 2H2O CaO Al2O3 Na2O + K2O CaSO4, 2H2O CaO Al2O3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of water molecules present in a drop of water (volume 0.0018 ml) at room temperature is 6.023 x 1023 4.84 x 1017 1.568 x 103 6.023 x 1019 6.023 x 1023 4.84 x 1017 1.568 x 103 6.023 x 1019 ANSWER DOWNLOAD EXAMIANS APP
Chemistry DDT and BHC may act as Asthematic agents Carcinogens Allergens None of these Asthematic agents Carcinogens Allergens None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry The pollutant responsible for ozone holes is ________ CO2 CO CFC SO2 CO2 CO CFC SO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following is a carbohydrate ? Cane-sugar Turpentine Hydrogen peroxide Nylon Cane-sugar Turpentine Hydrogen peroxide Nylon ANSWER DOWNLOAD EXAMIANS APP
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