Chemistry Major portion of the earth’s crust is mainly constituted by Silicon and Iron Oxygen and Iron Oxygen and Silicon Silicon and Aluminium Silicon and Iron Oxygen and Iron Oxygen and Silicon Silicon and Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry White phosphorus is always kept under Kerosene Ether Water Benzene Kerosene Ether Water Benzene ANSWER DOWNLOAD EXAMIANS APP
Chemistry Main source of lead pollution is from Tobacco Leaded gasoline Insecticides Sewage Tobacco Leaded gasoline Insecticides Sewage ANSWER DOWNLOAD EXAMIANS APP
Chemistry Food cans are coated with tin and not with zinc because Zinc is costlier than tin Zinc is less reactive than tin Zinc is more reactive than tin Zinc has a higher melting point than tin Zinc is costlier than tin Zinc is less reactive than tin Zinc is more reactive than tin Zinc has a higher melting point than tin ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical used in embalming biological materials is Formaldehyde in water Formaldehyde in methanol Ethylene glycol Gaseous formaldehyde Formaldehyde in water Formaldehyde in methanol Ethylene glycol Gaseous formaldehyde ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brine refers to : Salt water Sweet water Pure water Starch water Salt water Sweet water Pure water Starch water ANSWER DOWNLOAD EXAMIANS APP
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