Chemistry The manufacture of iron from iron ore involves the process of Fractional distillation Reduction Electrolysis Oxidation Fractional distillation Reduction Electrolysis Oxidation 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 Nitrogen forms a variety of compounds in all oxidation states ranging from –3 to + 6 –3 to + 5 –3 to + 3 –3 to + 4 –3 to + 6 –3 to + 5 –3 to + 3 –3 to + 4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following metals is used to galvanise iron ? Zinc Copper Lead Mercury Zinc Copper Lead Mercury ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sweat contains water and ________ Citric acid Lactic acid Salt Vinegar Citric acid Lactic acid Salt Vinegar ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone layer is present in Stratosphere Exosphere Ionosphere Troposphere Stratosphere Exosphere Ionosphere Troposphere ANSWER DOWNLOAD EXAMIANS APP
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