Chemistry In upper layer of atmosphere ozone is formed by The action of nitrogen on oxygen in atmosphere The combination of oxygen molecules The action of ultraviolet rays on oxygen Subjecting oxygen to high pressure The action of nitrogen on oxygen in atmosphere The combination of oxygen molecules The action of ultraviolet rays on oxygen Subjecting oxygen to high pressure ANSWER DOWNLOAD EXAMIANS APP
Chemistry Benzene cannot undergo : Addition Elimination Substitution Oxidation Addition Elimination Substitution Oxidation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sulphuric acid is Dibasic Tribasic Tetrabasic Monobasic Dibasic Tribasic Tetrabasic Monobasic ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical used in developing photographic films is Silver bromide Hypo Sodium sulphate Hydroquinone Silver bromide Hypo Sodium sulphate Hydroquinone ANSWER DOWNLOAD EXAMIANS APP
Chemistry The filter over which sewage is sprinkled is called as Contact bed Trickling filter Percolating filter Intermittent sand filter Contact bed Trickling filter Percolating filter Intermittent sand filter ANSWER DOWNLOAD EXAMIANS APP
Chemistry Synthetic detergents are prepared from Hydrocarbons of petroleum Potassium salts of higher fatty-acids Sodium salts of higher fattyacids Glycerides Hydrocarbons of petroleum Potassium salts of higher fatty-acids Sodium salts of higher fattyacids Glycerides ANSWER DOWNLOAD EXAMIANS APP
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