Chemistry The third shell of an atom can have a maximum of ______ electrons 13 18 21 15 13 18 21 15 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The formula C6H5-CO-CH3 represents Acetone Acetophenone Acetic acid Phenyl acetate Acetone Acetophenone Acetic acid Phenyl acetate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The natural source of hydro-carbon is Biomass Crude oil Carbohydrates Coal Biomass Crude oil Carbohydrates Coal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chile saltpeter is the common name of: Potassium nitrate Sodium nitrate Sodium nitrite Potassium nitrite Potassium nitrate Sodium nitrate Sodium nitrite Potassium nitrite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain is caused by the pollution of environment by Ozone and Carbon dioxide Carbon monoxide and Carbon dioxide Nitrous oxide and Sulphur dioxide Carbon dioxide and Nitrogen Ozone and Carbon dioxide Carbon monoxide and Carbon dioxide Nitrous oxide and Sulphur dioxide Carbon dioxide and Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Freon' used as refrigerants is chemically Chlorofluoro hydrocarbon Chlorinated hydrocarbon Fluorinated aromatic compound Fluorinated hydrocarbon Chlorofluoro hydrocarbon Chlorinated hydrocarbon Fluorinated aromatic compound Fluorinated hydrocarbon ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS