Chemistry What is the element that is in the highest percentage in the composition of the earth ? Oxygen Silicon Magnesium Iron Oxygen Silicon Magnesium Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry An inert gas mixed with oxygen given to patients suffering from restricted breathing is Argon Krypton Helium Radon Argon Krypton Helium Radon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is found in kidney stones? Sodium oxalate Sodium chloride Calcium acetate Calcium oxalate Sodium oxalate Sodium chloride Calcium acetate Calcium oxalate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following minerals is found in Monazite sand ? Uranium Potassium Sodium Thorium Uranium Potassium Sodium Thorium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Total number of elements in the Periodic table 112 118 127 115 112 118 127 115 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following forms of phosphorus is most reactive? White phosphorus Black phosphorus Red phosphorus Violet phosphorus White phosphorus Black phosphorus Red phosphorus Violet phosphorus ANSWER DOWNLOAD EXAMIANS APP
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