Chemistry Which of the following is not a commercial source of energy? Petroleum Firewood Natural Gas Coal Petroleum Firewood Natural Gas Coal ANSWER DOWNLOAD EXAMIANS APP
Chemistry The pollutant responsible for ozone holes is ________ CFC SO2 CO CO2 CFC SO2 CO CO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Conduction band electrons have more mobility than holes because they Have negative charge Experience collision less frequently Are lighter Need less energy to move them Have negative charge Experience collision less frequently Are lighter Need less energy to move them ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is commonly used for pulp bleaching in the paper industry? Iodine and water Glucose isomerase Hydrogen peroxide Mild sulphuric acid Iodine and water Glucose isomerase Hydrogen peroxide Mild sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of these acids is not organic in origin? Sulphuric acid Oxalic acid Citric acid Lactic acid Sulphuric acid Oxalic acid Citric acid Lactic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Diamond is harder than graphite because of : Tetrahedral structure of diamond Difference of crystalline structures Difference in layers of atoms None of these Tetrahedral structure of diamond Difference of crystalline structures Difference in layers of atoms None of these ANSWER DOWNLOAD EXAMIANS APP
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