Chemistry The gas that usually causes explosions in coal mines is Air Carbon monoxide Hydrogen Methane Air Carbon monoxide Hydrogen Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Alcohol prepared by the distillation of wood is : Ethyl alcohol Methyl alcohol Glycerol Propyl alcohol Ethyl alcohol Methyl alcohol Glycerol Propyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry KMnO4 can be used as a/an Disinfectant Pesticide Insecticide Fertiliser Disinfectant Pesticide Insecticide Fertiliser ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the most commonly used substance in fluorescent tubes? Mercury oxide and neon Sodium vapour and neon Mercury vapour and argon Sodium oxide and argon Mercury oxide and neon Sodium vapour and neon Mercury vapour and argon Sodium oxide and argon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Gobar gas mainly contains Hydrogen sulphide Methane Carbon dioxide Carbon monoxide Hydrogen sulphide Methane Carbon dioxide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium is added to the oxygen supply of deep sea divers because it is Lighter than nitrogen Readily miscible with oxygen Less soluble in blood than nitrogen at high pressure Less poisonous than nitrogen Lighter than nitrogen Readily miscible with oxygen Less soluble in blood than nitrogen at high pressure Less poisonous than nitrogen ANSWER DOWNLOAD EXAMIANS APP
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