Chemistry Which one of the following statement is correct ?Ozone is found in the earth's atmosphere mostly between 10 and 20 km 5 and 10 km 50 and 100 km 20 and 50 km 10 and 20 km 5 and 10 km 50 and 100 km 20 and 50 km ANSWER DOWNLOAD EXAMIANS APP
Chemistry A mixture of water and alcohol can be separated by Evaporation Decantation Distillation Filtration Evaporation Decantation Distillation Filtration ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that usually causes explosions in coal mines is Air Hydrogen Methane Carbon monoxide Air Hydrogen Methane Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry When water itself combines chemically with some element or mineral it is called Hydration Desilication Oxidation Carbonation Hydration Desilication Oxidation Carbonation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Detergents are Sodium salts of fatty acids None of these Sodium salt of benzoic acid Sodium salts of sulphonic acids Sodium salts of fatty acids None of these Sodium salt of benzoic acid Sodium salts of sulphonic acids ANSWER DOWNLOAD EXAMIANS APP
Chemistry The method that cannot be used for removing permanent hardness of water is boiling adding caustic soda distillation adding sodium carbonate boiling adding caustic soda distillation adding sodium carbonate ANSWER DOWNLOAD EXAMIANS APP
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