Chemistry The scientist who experimentally proved the existance of positron is Fermi Bethe Anderson Bohr Fermi Bethe Anderson Bohr ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element used for making solar cells is Calcium Silicon Magnesium Sodium Calcium Silicon Magnesium Sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a commercial source of energy? Petroleum Coal Firewood Natural Gas Petroleum Coal Firewood Natural Gas ANSWER DOWNLOAD EXAMIANS APP
Chemistry Quartz is a crystalline form of Silica Glass Limestone Alumina Silica Glass Limestone Alumina ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical name of vinegar is Formaldehyde Acetic acid Ethanol Acetone Formaldehyde Acetic acid Ethanol Acetone ANSWER DOWNLOAD EXAMIANS APP
Chemistry The term 'brown air' is used for Photochemical smog Sulphurous smog Acid fumes Industrial smog Photochemical smog Sulphurous smog Acid fumes Industrial smog ANSWER DOWNLOAD EXAMIANS APP
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