Chemistry Which of the following is not a method of preparing oxygen? Electrolysis of water Fractional distillation of liquid air Decomposition of manganese dioxide Decomposition of potassium permanganate Electrolysis of water Fractional distillation of liquid air Decomposition of manganese dioxide Decomposition of potassium permanganate ANSWER DOWNLOAD EXAMIANS APP
Chemistry PVC is obtained by the polymerisation of Vinyl chloride Styrene Propane Acetylene Vinyl chloride Styrene Propane Acetylene ANSWER DOWNLOAD EXAMIANS APP
Chemistry One of the constituents of tear gas is Ether Chloropicrin Ethanol Ethane Ether Chloropicrin Ethanol Ethane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is a greenhouse gas ? Helium Sulphur dioxide Nitrogen Carbon dioxide Helium Sulphur dioxide Nitrogen Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of g-molecule of oxygen in 6.02 x 1024CO molecules is 5 gram of molecule 10 gram of molecule 1 gram of molecule 0.5 gram of molecule 5 gram of molecule 10 gram of molecule 1 gram of molecule 0.5 gram of molecule ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant element by number in the living system is : Nitrogen Hydrogen Carbon Oxygen Nitrogen Hydrogen Carbon Oxygen ANSWER DOWNLOAD EXAMIANS APP
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