Chemistry The total energy of revolving electron in an atom Will always be positive Can have any value above zero Cannot be negative Can never be positive Will always be positive Can have any value above zero Cannot be negative Can never be positive ANSWER DOWNLOAD EXAMIANS APP
Chemistry Heavy metals got their name because compared to other atoms they have Higher atomic radii Higher atomic numbers Higher atomic masses Higher densities Higher atomic radii Higher atomic numbers Higher atomic masses Higher densities ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which metal does not undergo corrosion due to the formation of oxide layer? Iron Aluminium Copper Zinc Iron Aluminium Copper Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry The coating of a thin layer of zinc on steel or iron objects is known as Electroplating Hot dipping Tinning Galvanising Electroplating Hot dipping Tinning Galvanising ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron filings can be separated from a heterogenous mixture using the technique of : Magnetization Sedimentation Evaporation Sublimation Magnetization Sedimentation Evaporation Sublimation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Main source of lead pollution is from Leaded gasoline Insecticides Tobacco Sewage Leaded gasoline Insecticides Tobacco Sewage ANSWER DOWNLOAD EXAMIANS APP
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