Chemistry Main source of lead pollution is from Insecticides Sewage Leaded gasoline Tobacco Insecticides Sewage Leaded gasoline Tobacco ANSWER DOWNLOAD EXAMIANS APP
Chemistry The presence of Cobalt in Vitamin B12 was established for the first time by Spectroscopy Sodium Nitroprusside test Borax-Bead test Hydrolysis test Spectroscopy Sodium Nitroprusside test Borax-Bead test Hydrolysis test ANSWER DOWNLOAD EXAMIANS APP
Chemistry Magnetite is FeCO3 2Fe2O3. 3H2O Fe2O3 Fe3O4 FeCO3 2Fe2O3. 3H2O Fe2O3 Fe3O4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most reactive among the halogens is Bromine Fluorine Iodine Chlorine Bromine Fluorine Iodine Chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following causes the rusting of iron? a. Oxidation b. Reduction c. Chemical reaction with oxygend. Chemical reaction with CO2 A and c A and b B and c C and d A and c A and b B and c C and d ANSWER DOWNLOAD EXAMIANS APP
Chemistry 'Plaster of Paris' is made by partial dehydration of Epsom salt Gypsum salt Blue vitriol Green vitriol Epsom salt Gypsum salt Blue vitriol Green vitriol ANSWER DOWNLOAD EXAMIANS APP
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