Chemistry Aluminium can be purified by Oxidation Electrolysis Ozonolysis Distillation Oxidation Electrolysis Ozonolysis Distillation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Mercury is emitted into air by Steam engine Burning coal Burning garbage Coal fire Steam engine Burning coal Burning garbage Coal fire ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal ion present in Vitamin B12 is Zinc Iron Nickel Cobalt Zinc Iron Nickel Cobalt ANSWER DOWNLOAD EXAMIANS APP
Chemistry Threshold limit value of copper in the atmospheric air is 0.001 mg/m3 5.0 mg/m3 1.0 mg/m3 0.01 mg/m3 0.001 mg/m3 5.0 mg/m3 1.0 mg/m3 0.01 mg/m3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the inert gases can form compounds? Argon Helium Xenon Krypton Argon Helium Xenon Krypton ANSWER DOWNLOAD EXAMIANS APP
Chemistry Equal masses of oxygen, hydrogen and methane are kept under identical conditions. The ratio of the volumes of gases will be 2 : 16 : 1 1 : 16 : 2 1 : 1 : 1 2 : 16 : 2 2 : 16 : 1 1 : 16 : 2 1 : 1 : 1 2 : 16 : 2 ANSWER DOWNLOAD EXAMIANS APP
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