Chemistry Main source of lead pollution is from Sewage Insecticides Tobacco Leaded gasoline Sewage Insecticides Tobacco Leaded gasoline ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main source of Naphthalene is Camphor Coal-tar Charcoal Diesel Camphor Coal-tar Charcoal Diesel ANSWER DOWNLOAD EXAMIANS APP
Chemistry Bleaching powder is prepared by passing : Chlorine over slaked lime Chlorine over quick lirne Oxygen over slaked lime Carbon dioxide over slaked lime Chlorine over slaked lime Chlorine over quick lirne Oxygen over slaked lime Carbon dioxide over slaked lime ANSWER DOWNLOAD EXAMIANS APP
Chemistry Major portion of the earth’s crust is mainly constituted by Oxygen and Silicon Silicon and Aluminium Silicon and Iron Oxygen and Iron Oxygen and Silicon Silicon and Aluminium Silicon and Iron Oxygen and Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who developed Hydrogen Bomb? Samuel Cohen Wernher Von Braun Edward Teller J. Robert Oppen Heimer Samuel Cohen Wernher Von Braun Edward Teller J. Robert Oppen Heimer ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silver nitrate solution is kept in brown bottles in laboratory because It reacts with ordinary white bottles Brown bottles react with it Brown bottles do not react with it Brown bottles stops the passage of light through it It reacts with ordinary white bottles Brown bottles react with it Brown bottles do not react with it Brown bottles stops the passage of light through it ANSWER DOWNLOAD EXAMIANS APP
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