Chemistry The water pollution in river is measured by the dissolved amount of Oxygen Chlorine Ozone Nitrogen Oxygen Chlorine Ozone Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a natural source of hydrocarbon? Mica Coal Natural Gas Petroleum Mica Coal Natural Gas Petroleum ANSWER DOWNLOAD EXAMIANS APP
Chemistry Concentration of a material which is lethal to 50% animal is called NOAEL LC50 LD50 ADI NOAEL LC50 LD50 ADI ANSWER DOWNLOAD EXAMIANS APP
Chemistry PH scale ranges from 0 – 14 0 – 7 8 – 14 None 0 – 14 0 – 7 8 – 14 None ANSWER DOWNLOAD EXAMIANS APP
Chemistry Detergents are Sodium salts of sulphonic acids None of these Sodium salts of fatty acids Sodium salt of benzoic acid Sodium salts of sulphonic acids None of these Sodium salts of fatty acids Sodium salt of benzoic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper is refined by Electrolysis Zone refining Roasting Oxidation Electrolysis Zone refining Roasting Oxidation ANSWER DOWNLOAD EXAMIANS APP
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