Chemistry Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs? Helium Hydrogen Methane Nitrogen Helium Hydrogen Methane Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas involved in Bhopal incident was Hydrogen sulphide Methyl isocyanide Nitrogen dioxide Methyl chloride Hydrogen sulphide Methyl isocyanide Nitrogen dioxide Methyl chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the element that is in the highest percentage in the composition of the earth ? Silicon Magnesium Oxygen Iron Silicon Magnesium Oxygen Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Total number of elements in the Periodic table 127 118 115 112 127 118 115 112 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Bauxite is used as raw material by which industry ? Gold Iron Steel Aluminium Gold Iron Steel Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The Refrigerant 'FREON' is Calcium Tetra Fluoride Fluorspar and Felspar Difluoro Dichloro Methane Hydrofluosilicic Acid Calcium Tetra Fluoride Fluorspar and Felspar Difluoro Dichloro Methane Hydrofluosilicic Acid ANSWER DOWNLOAD EXAMIANS APP
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