Chemistry Zone refining is used for the purification of Ag Au Cu Ge Ag Au Cu Ge ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that causes suffocation and death when coal or coke is burnt in a closed room is Ethane Carbon di-oxide Carbon monoxide Methane Ethane Carbon di-oxide Carbon monoxide Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following forms of phosphorus is most reactive? Red phosphorus White phosphorus Black phosphorus Violet phosphorus Red phosphorus White phosphorus Black phosphorus Violet phosphorus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a commercial source of energy? Petroleum Natural Gas Coal Firewood Petroleum Natural Gas Coal Firewood ANSWER DOWNLOAD EXAMIANS APP
Chemistry What material is used to make electric heater coil ? Iron Copper Nichrome Silver Iron Copper Nichrome Silver ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which colour is produce by Arsenic during flame test Blue Green Crimson Red Blue Green Crimson Red ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS