Chemistry The most abundant element by number in the living system is : Hydrogen Nitrogen Carbon Oxygen Hydrogen Nitrogen Carbon Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of d-electrons in Fe2+ (Z = 26) is not equal to that of p-electrons in CI(Z = 17) p-electrons in Ne(Z = 10) s-electrons in Mg(Z = 12) d-electrons in Fe(Z = 26) p-electrons in CI(Z = 17) p-electrons in Ne(Z = 10) s-electrons in Mg(Z = 12) d-electrons in Fe(Z = 26) ANSWER DOWNLOAD EXAMIANS APP
Chemistry What are the major pollutants of cigarette smoke? Carbon monoxide and benzene Carbon monoxide and nicotine Carbon monoxide and dioxin Dioxin and benzene Carbon monoxide and benzene Carbon monoxide and nicotine Carbon monoxide and dioxin Dioxin and benzene ANSWER DOWNLOAD EXAMIANS APP
Chemistry The wire of flash bulb is made of: Barium Magnesium Copper Silver Barium Magnesium Copper Silver ANSWER DOWNLOAD EXAMIANS APP
Chemistry The trans-uranium elements are the chemical elements with atomic numbers greater than 96 89 92 86 96 89 92 86 ANSWER DOWNLOAD EXAMIANS APP
Chemistry One of the following is used to dissolve noble metals. That is Sulphuric acid Nitric acid Aqua ragia Hydrochloric acid Sulphuric acid Nitric acid Aqua ragia Hydrochloric acid ANSWER DOWNLOAD EXAMIANS APP
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