Chemistry The metal used for making aircrafts and rockets is Lead Copper Aluminium Nickel Lead Copper Aluminium Nickel ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs? Methane Hydrogen Helium Nitrogen Methane Hydrogen Helium Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following does not form oxyacid ? Chlorine Fluorine Nitrogen Sulphur Chlorine Fluorine Nitrogen Sulphur ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of these acids is not organic in origin? Oxalic acid Citric acid Lactic acid Sulphuric acid Oxalic acid Citric acid Lactic acid Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element which is used for vulcanizing rubber Phosphorus Sulphur Silicon Bromine Phosphorus Sulphur Silicon Bromine ANSWER DOWNLOAD EXAMIANS APP
Chemistry The three elements most needed in common fertilisers are : Nitrogen, Potassium and Phosphorous Calcium, Phosphorous and Potassium Phosphorous, Sodium and Nitrogen Sulphur, Phosphorous and Sodium Nitrogen, Potassium and Phosphorous Calcium, Phosphorous and Potassium Phosphorous, Sodium and Nitrogen Sulphur, Phosphorous and Sodium ANSWER DOWNLOAD EXAMIANS APP
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