Chemistry Which of the following is secondary air pollutant ? Photochemical smog NO2 SO2 Dust particles Photochemical smog NO2 SO2 Dust particles ANSWER DOWNLOAD EXAMIANS APP
Chemistry An important green-house gas other than methane being produced from the agricultural fields is Arsine Ammonia Sulphur dioxide Nitrous oxide Arsine Ammonia Sulphur dioxide Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following was used as a chemical weapon in the first world war ? Hydrogen cyanide Carbon monoxide Water gas Mustard gas Hydrogen cyanide Carbon monoxide Water gas Mustard gas ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which substance is used to retard the setting action of cement? Al2O3 Na2O + K2O CaSO4, 2H2O CaO Al2O3 Na2O + K2O CaSO4, 2H2O CaO ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sea water is saltier than rain water because The air around the sea is saltish Sea animals are salt producing Sea beds have salt producing mines Rivers wash away salts from earth and pour them into the sea The air around the sea is saltish Sea animals are salt producing Sea beds have salt producing mines Rivers wash away salts from earth and pour them into the sea ANSWER DOWNLOAD EXAMIANS APP
Chemistry Air shows the property of Both A and B N2 O2 None of these Both A and B N2 O2 None of these ANSWER DOWNLOAD EXAMIANS APP
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