Chemistry The gas used to dilute oxygen for breathing by deep sea divers is: Argon Nitrogen Neon Helium Argon Nitrogen Neon Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry All isotopes of the same element have ________ The same atomic number and the atomic mass Different atomic numbers and the same atomic mass The same atomic number but different atomic masses Different atomic numbers and different atomic mass The same atomic number and the atomic mass Different atomic numbers and the same atomic mass The same atomic number but different atomic masses Different atomic numbers and different atomic mass ANSWER DOWNLOAD EXAMIANS APP
Chemistry Concentration of a material which is lethal to 50% animal is called LD50 LC50 ADI NOAEL LD50 LC50 ADI NOAEL ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sour taste of ‘Coca Cola’ is due to the presence of Formic acid Hydrochloric acid Phosphoric acid Acetic acid Formic acid Hydrochloric acid Phosphoric acid Acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is a micro-element ? Nitrogen Hydrogen Chlorine Oxygen Nitrogen Hydrogen Chlorine Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used to restore the colour of old oilpaintings ? Sodium peroxide Ozone Barium peroxide Hydrogen peroxide Sodium peroxide Ozone Barium peroxide Hydrogen peroxide ANSWER DOWNLOAD EXAMIANS APP
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