Chemistry Major portion of the earth’s crust is mainly constituted by Silicon and Aluminium Oxygen and Iron Silicon and Iron Oxygen and Silicon Silicon and Aluminium Oxygen and Iron Silicon and Iron Oxygen and Silicon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical name of 'Plaster of Paris' commonly used for setting broken bones is Calcium carbonate Calcium chloride Calcium nitrate Calcium sulphate Calcium carbonate Calcium chloride Calcium nitrate Calcium sulphate 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 5x 5x/36 7.2 x x/6 5x 5x/36 7.2 x x/6 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following acts as best adsorbent? Activated Charcoal Activated Coconut Charcoal Carbon black Charcoal Activated Charcoal Activated Coconut Charcoal Carbon black Charcoal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs? Methane Nitrogen Hydrogen Helium Methane Nitrogen Hydrogen Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most commonly used bleaching agent is carbon dioxide sodium chlorine alcohol chlorine carbon dioxide sodium chlorine alcohol chlorine ANSWER DOWNLOAD EXAMIANS APP
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