Chemistry The BOD values of water indicate the Amount of organic debris Amount of ozone used for biochemical oxidation Amount of oxygen used for biochemical oxidation Amount of oxygen used for biochemical reduction Amount of organic debris Amount of ozone used for biochemical oxidation Amount of oxygen used for biochemical oxidation Amount of oxygen used for biochemical reduction ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a method of preparing oxygen? Decomposition of manganese dioxide Decomposition of potassium permanganate Fractional distillation of liquid air Electrolysis of water Decomposition of manganese dioxide Decomposition of potassium permanganate Fractional distillation of liquid air Electrolysis of water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Gold dissolves in Aqua-regia Nitric acid Hydrochloric acid Acetic acid Aqua-regia Nitric acid Hydrochloric acid Acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Impure camphor is purified by Steam distillation Sublimation Fractional crystallisation Fractional distillation Steam distillation Sublimation Fractional crystallisation Fractional distillation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following metals does not react with water to produce Hydrogen ? Sodium Cadmium Lithium Potassium Sodium Cadmium Lithium Potassium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal extracted from Bauxite is : Copper Aluminum Silver Manganese Copper Aluminum Silver Manganese ANSWER DOWNLOAD EXAMIANS APP
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