Chemistry Main source of lead pollution is from Sewage Leaded gasoline Insecticides Tobacco Sewage Leaded gasoline Insecticides Tobacco ANSWER DOWNLOAD EXAMIANS APP
Chemistry German silver used for making utensils is an alloy of Copper, silver, nickel Copper, zinc, aluminium Copper, zinc, nickel Copper, nickel, aluminium Copper, silver, nickel Copper, zinc, aluminium Copper, zinc, nickel Copper, nickel, aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry It is dangerous to leave the car engine running in a closed garage, because it may cause serious pollution due to poisoning by emission of CO2 SO2 CO Unburnt petrol CO2 SO2 CO Unburnt petrol ANSWER DOWNLOAD EXAMIANS APP
Chemistry High concentration hydrocarbon pollutants in atmospheric air causes Respiratory diseases (e.g.asthma) Cancer Reduced crop yield Silicosis Respiratory diseases (e.g.asthma) Cancer Reduced crop yield Silicosis ANSWER DOWNLOAD EXAMIANS APP
Chemistry An element of atomic no. 29 belongs to F-block S-block P-block D-block F-block S-block P-block D-block ANSWER DOWNLOAD EXAMIANS APP
Chemistry Bayer's reagent is Hydrogen peroxide Bromine water Acidified potassium permanganate Alkaline potassium permanganate Hydrogen peroxide Bromine water Acidified potassium permanganate Alkaline potassium permanganate ANSWER DOWNLOAD EXAMIANS APP
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