Chemistry The number of d-electrons in Fe2+ (Z = 26) is not equal to that of d-electrons in Fe(Z = 26) s-electrons in Mg(Z = 12) p-electrons in Ne(Z = 10) p-electrons in CI(Z = 17) d-electrons in Fe(Z = 26) s-electrons in Mg(Z = 12) p-electrons in Ne(Z = 10) p-electrons in CI(Z = 17) ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the most common salt in sea water ? Magnesium sulphate Sodium chloride Potassium chloride Calcium carbonate Magnesium sulphate Sodium chloride Potassium chloride Calcium carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper is refined by Electrolysis Zone refining Oxidation Roasting Electrolysis Zone refining Oxidation Roasting ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following minerals is found in pure form? Copper Iron Bauxite Manganese Copper Iron Bauxite Manganese ANSWER DOWNLOAD EXAMIANS APP
Chemistry Match the sourc in Column B with the product of Column A. (Product) Column B (Source)A. Formic acid1. LemonB. Citric acid 2. TamarindC. Tartaric acid3. Ants A B C3 2 1 A B C 3 1 2 A B C 2 1 3 A B C 2 3 1 A B C3 2 1 A B C 3 1 2 A B C 2 1 3 A B C 2 3 1 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Choose the incorrect statement pertaining to organic compounds They have low melting and boiling points They contain mainly carbon and hydrogen They do not dissolve in water They are not easily combustible They have low melting and boiling points They contain mainly carbon and hydrogen They do not dissolve in water They are not easily combustible ANSWER DOWNLOAD EXAMIANS APP
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