Chemistry Copper is refined by Oxidation Electrolysis Roasting Zone refining Oxidation Electrolysis Roasting Zone refining ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of neutrons present in an element having mass number 226 and atomic number 88 is : 88 138 314 50 88 138 314 50 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a metallic ore ? Mica Galena Feldspar Quartz Mica Galena Feldspar Quartz ANSWER DOWNLOAD EXAMIANS APP
Chemistry Two electrons in an orbital are differentiated by which of the following ? Principal quantum number Magnetic quantum number Spin quantum number Azimuthal quantum number Principal quantum number Magnetic quantum number Spin quantum number Azimuthal quantum number ANSWER DOWNLOAD EXAMIANS APP
Chemistry Total number of elements in the Periodic table 115 112 127 118 115 112 127 118 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is commonly used for pulp bleaching in the paper industry? Hydrogen peroxide Glucose isomerase Mild sulphuric acid Iodine and water Hydrogen peroxide Glucose isomerase Mild sulphuric acid Iodine and water ANSWER DOWNLOAD EXAMIANS APP
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