Chemistry The antiparticle of an electron is Beta particles Positron Alpha particles Proton Beta particles Positron Alpha particles Proton ANSWER DOWNLOAD EXAMIANS APP
Chemistry Carborundum is another name of Calcium oxide Silicon oxide Silicon carbide Calcium carbide Calcium oxide Silicon oxide Silicon carbide Calcium carbide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical formula of the laughing gas is NO2 N2O3 NO N2O NO2 N2O3 NO N2O ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain' is caused due to air - pollution by Methane Carbon dioxide Carbon monoxide Nitrous oxide and sulphur dioxide Methane Carbon dioxide Carbon monoxide Nitrous oxide and sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following chemical materials is responsible for the depletion of ozone layer in the atmosphere ? Nitrous oxide Sulphur dioxide Chlorofluorocarbon Carbon dioxide Nitrous oxide Sulphur dioxide Chlorofluorocarbon Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is an example of noble gas ? Helium Hydrogen Chlorine Nitrogen Helium Hydrogen Chlorine Nitrogen ANSWER DOWNLOAD EXAMIANS APP
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