Chemistry Main source of lead pollution is from Insecticides Sewage Leaded gasoline Tobacco Insecticides Sewage Leaded gasoline Tobacco ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron is extracted from Haematite Bauxite Dolomite Cinnabar Haematite Bauxite Dolomite Cinnabar ANSWER DOWNLOAD EXAMIANS APP
Chemistry Synthetic detergents are prepared from Hydrocarbons of petroleum Sodium salts of higher fattyacids Glycerides Potassium salts of higher fatty-acids Hydrocarbons of petroleum Sodium salts of higher fattyacids Glycerides Potassium salts of higher fatty-acids ANSWER DOWNLOAD EXAMIANS APP
Chemistry The human body is made up of several chemical elements; the element present in the highest proportion (65%) in the body is oxygen nitrogen carbon hydrogen oxygen nitrogen carbon hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The presence of Cobalt in Vitamin B12 was established for the first time by Hydrolysis test Borax-Bead test Sodium Nitroprusside test Spectroscopy Hydrolysis test Borax-Bead test Sodium Nitroprusside test Spectroscopy ANSWER DOWNLOAD EXAMIANS APP
Chemistry The antiparticle of an electron is Alpha particles Positron Beta particles Proton Alpha particles Positron Beta particles Proton ANSWER DOWNLOAD EXAMIANS APP
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