Chemistry The metal ion present in Vitamin B12 is Cobalt Iron Nickel Zinc Cobalt Iron Nickel Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Among the following the hardest metal is Gold Iron Tungsten Platinum Gold Iron Tungsten Platinum ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is the lightest element in the periodic table Carbon Hydrogen Helium Oxygen Carbon Hydrogen Helium Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Black lung disease occurs in people working in Coal mines Organic solvents industry Electroplating industry Paint manufacturing industry Coal mines Organic solvents industry Electroplating industry Paint manufacturing industry ANSWER DOWNLOAD EXAMIANS APP
Chemistry The important ore of aluminium is Bauxite Cryolite Haematite Fluorspar Bauxite Cryolite Haematite Fluorspar ANSWER DOWNLOAD EXAMIANS APP
Chemistry Main source of lead pollution is from Leaded gasoline Tobacco Insecticides Sewage Leaded gasoline Tobacco Insecticides Sewage ANSWER DOWNLOAD EXAMIANS APP
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