Chemistry Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs? Helium Hydrogen Methane Nitrogen Helium Hydrogen Methane Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is not a primary greenhouse gases in the Earth's atmosphere Nitrogen Carbon dioxide Ozone Methane Nitrogen Carbon dioxide Ozone Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry In addition to hydrogen, the other abundant element present on Sun’s surface is Helium Neon Argon Oxygen Helium Neon Argon Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Permanent – hardness of water may be removed by addition of Lime Potassium Permangante Sodium carbonate Alum Lime Potassium Permangante Sodium carbonate Alum ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following caused radioactive pollution along the coast of Kerala ? Zinc Thorium Plutonium Radium Zinc Thorium Plutonium Radium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silver halides are used in photographic plates because they are Soluble in hyposolution Reduced by light Totally colourless Oxidised in air Soluble in hyposolution Reduced by light Totally colourless Oxidised in air ANSWER DOWNLOAD EXAMIANS APP
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