Chemistry Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs? Helium Methane Hydrogen Nitrogen Helium Methane Hydrogen Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a gaseous air pollutant? Smoke Oxides of sulphur Oxides of nitrogen Hydrocarbon Smoke Oxides of sulphur Oxides of nitrogen Hydrocarbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Carbon footprint can be reduced by Using energy efficient appliances Recycling waste materials Commuting by public transport All of these Using energy efficient appliances Recycling waste materials Commuting by public transport All of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry The example of oligosaccharide is Glucose Cellulose Sucrose Ribose Glucose Cellulose Sucrose Ribose ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following forms of phosphorus is most reactive? Red phosphorus Black phosphorus Violet phosphorus White phosphorus Red phosphorus Black phosphorus Violet phosphorus White phosphorus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the toxic heavy metals is found in modern tannery industries ? Zinc Chromium Nickel Lead Zinc Chromium Nickel Lead ANSWER DOWNLOAD EXAMIANS APP