Chemistry For extinguishing fire, we use Marsh gas Hydrogen Carbon Monoxide Carbon Dioxide Marsh gas Hydrogen Carbon Monoxide Carbon Dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs? Hydrogen Methane Nitrogen Helium Hydrogen Methane Nitrogen Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ionisation energy of hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2nd orbit to 3rd orbit is 7.2 x 5x/36 5x x/6 7.2 x 5x/36 5x x/6 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal that is usually extracted from sea water is Na Mg Ca K Na Mg Ca K ANSWER DOWNLOAD EXAMIANS APP
Chemistry The example of oligosaccharide is Sucrose Ribose Glucose Cellulose Sucrose Ribose Glucose Cellulose ANSWER DOWNLOAD EXAMIANS APP
Chemistry What particles move around the nucleus of an atom and are negatively charged? Positrons Neutrons Electrons Protons Positrons Neutrons Electrons Protons ANSWER DOWNLOAD EXAMIANS APP
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