Chemistry The percentage of oxygen in air is approximately 1 0.78 0.01 0.21 1 0.78 0.01 0.21 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which method will be employed to test the hardness of water? Formation of lather with soap Boiling None of these Distillation Formation of lather with soap Boiling None of these Distillation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The major constituent of air is oxygen carbon dioxide hydrogen nitrogen oxygen carbon dioxide hydrogen nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical name of rat poison is Zinc phosphide Potassium cyanide Lead nitrate Zinc oxide Zinc phosphide Potassium cyanide Lead nitrate Zinc oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following acids is used in battery ? Sulphurous acid Sulphuric acid Hydrofluoric acid Hydrochloric acid Sulphurous acid Sulphuric acid Hydrofluoric acid Hydrochloric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs? Hydrogen Helium Nitrogen Methane Hydrogen Helium Nitrogen Methane ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS