Chemistry The most abundant element by number in the living system is : Nitrogen Carbon Hydrogen Oxygen Nitrogen Carbon Hydrogen Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Among the following, which is always found in free-state in nature? Sodium Silver Gold Copper Sodium Silver Gold Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry The BOD values of water indicate the Amount of ozone used for biochemical oxidation Amount of oxygen used for biochemical oxidation Amount of organic debris Amount of oxygen used for biochemical reduction Amount of ozone used for biochemical oxidation Amount of oxygen used for biochemical oxidation Amount of organic debris Amount of oxygen used for biochemical reduction ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ultra purification of a metal is done by : Leaching Smelting Zone melting Slugging Leaching Smelting Zone melting Slugging ANSWER DOWNLOAD EXAMIANS APP
Chemistry The highest volume of gases in lower atmosphere is comprised of Nitrogen Carbon dioxide Oxygen Hydrogen Nitrogen Carbon dioxide Oxygen Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The name of plastic polymer from which combs, toys, bowls etc., can be made, is Polyurethane Metallic polysulphides Polystyrene Teflon Polyurethane Metallic polysulphides Polystyrene Teflon ANSWER DOWNLOAD EXAMIANS APP
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