Chemistry Oxygen which is vital for life is a product of photosynthesis and comes from Oxides of mineral elements Carbon dioxide Carbonates from soil Water Oxides of mineral elements Carbon dioxide Carbonates from soil Water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Inert gases are Not stable Chemically very active Miscible with water Chemically unreactive Not stable Chemically very active Miscible with water Chemically unreactive ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium gas is used in gas balloons instead of hydrogen gas because it is More stable More abundant than hydrogen Lighter than hydrogen Non-combustible More stable More abundant than hydrogen Lighter than hydrogen Non-combustible ANSWER DOWNLOAD EXAMIANS APP
Chemistry Fertiliser having high nitrogen content is : Ammonium nitrate Urea Ammonium sulphate Calcium citrate Ammonium nitrate Urea Ammonium sulphate Calcium citrate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The manufacturing of iron from iron ore involves the process of Reduction Electrolysis Fractional distillation Oxidation Reduction Electrolysis Fractional distillation Oxidation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Many people died in London in 1952 as result of air pollution producing Smog Mist Fog Sleet Smog Mist Fog Sleet ANSWER DOWNLOAD EXAMIANS APP
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