Chemistry The first metal used by a man was Bronze Copper Brass Silver Bronze Copper Brass Silver ANSWER DOWNLOAD EXAMIANS APP
Chemistry Photo chemical smog is a resultant of the reaction among CO, O2 and peroxy acetyl nitrate in the presence of Sunlight NO2, O3 and peroxy acetyl nitrate in the presence of Sunlight CO, CO2 and NO2at low temperature High concentration of NO2, O3, and CO in the evening CO, O2 and peroxy acetyl nitrate in the presence of Sunlight NO2, O3 and peroxy acetyl nitrate in the presence of Sunlight CO, CO2 and NO2at low temperature High concentration of NO2, O3, and CO in the evening ANSWER DOWNLOAD EXAMIANS APP
Chemistry Highest percentage of carbon is found in which form of coal? Bituminous Anthracite Lignite Peat Bituminous Anthracite Lignite Peat ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas which emits from rice field is Methane All of these Ethane Nitrogen Methane All of these Ethane Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most commonly used chemicals in the artificial rainmaking or cloud seeding are Dry Ice (Frozen CO2) Sodium Chloride (NaCl) All of these Silver Iodide (Ag I) Dry Ice (Frozen CO2) Sodium Chloride (NaCl) All of these Silver Iodide (Ag I) ANSWER DOWNLOAD EXAMIANS APP
Chemistry The smog is essentially caused by the presence of O2 and N2 Oxides of N and S O3 and N2 O2 and O3 O2 and N2 Oxides of N and S O3 and N2 O2 and O3 ANSWER DOWNLOAD EXAMIANS APP
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