Chemistry The depletion in Ozone layer is caused by ________ . Nitrous oxide Chlorofluorocarbons Methane Carbon dioxide Nitrous oxide Chlorofluorocarbons Methane Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following metals provides amphoteric oxide ? Calcium Aluminium Silver Sodium Calcium Aluminium Silver Sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical name of ‘Common salt’ is Ammonium chloride Calcium chloride Sodium chloride Sodium nitrate Ammonium chloride Calcium chloride Sodium chloride Sodium nitrate ANSWER DOWNLOAD EXAMIANS APP
Chemistry It is dangerous to leave the car engine running in a closed garage, because it may cause serious pollution due to poisoning by emission of CO2 CO Unburnt petrol SO2 CO2 CO Unburnt petrol SO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Polythene is polymer of Ethylene Acetylene Propylene Aniline Ethylene Acetylene Propylene Aniline ANSWER DOWNLOAD EXAMIANS APP
Chemistry The antiparticle of an electron is Proton Beta particles Positron Alpha particles Proton Beta particles Positron Alpha particles ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS