Chemistry Which of the following is a secondary pollutant ? SO2 PAN CO NO SO2 PAN CO NO ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical substance present in bones and teeth is Calcium sulphate Calcium phosphate Calcium borate Calcium chloride Calcium sulphate Calcium phosphate Calcium borate Calcium chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry Stains of rust on clothes can be removed by : H2O2 Alcohol Petrol Oxalic acid H2O2 Alcohol Petrol Oxalic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sodium Carbonate is commonly known as Caustic Soda Caustic Potash Washing Soda Baking Soda Caustic Soda Caustic Potash Washing Soda Baking Soda ANSWER DOWNLOAD EXAMIANS APP
Chemistry The scientist who experimentally proved the existance of positron is Anderson Bethe Bohr Fermi Anderson Bethe Bohr Fermi ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chief source for the production of nitrogeneous fertilizers is : Nitrogen dioxide Ammonia Nitric acid Nitrogen Nitrogen dioxide Ammonia Nitric acid Nitrogen ANSWER DOWNLOAD EXAMIANS APP
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