Chemistry Iron is extracted from Dolomite Cinnabar Haematite Bauxite Dolomite Cinnabar Haematite Bauxite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not a ‘green house gas’ ? Methane Chlorofluorocarbons Nitrogen Carbon dioxide Methane Chlorofluorocarbons Nitrogen Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Of the following, which one pollutes the air of a big city ? Lead Copper Cadmium Chromium Lead Copper Cadmium Chromium ANSWER DOWNLOAD EXAMIANS APP
Chemistry How many neutrons are there in 92U238 atom ? 238 146 92 330 238 146 92 330 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a commercial source of energy? Dried dung Natural gas Agricultural waste Sun Dried dung Natural gas Agricultural waste Sun ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who first published the periodic table Dmitri Mendeleev Julius Lothar Meyer John Dalton Henry Moseley Dmitri Mendeleev Julius Lothar Meyer John Dalton Henry Moseley ANSWER DOWNLOAD EXAMIANS APP
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