Chemistry Supersonic jet causes pollution by thinning of O3 layer SO2 layer CO2 layer O 2 layer O3 layer SO2 layer CO2 layer O 2 layer ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas which emits from rice field is Ethane Nitrogen All of these Methane Ethane Nitrogen All of these Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry When there are two electrons in the same orbital, they have: Same spin Opposite spin Same or opposite spin No spin Same spin Opposite spin Same or opposite spin No spin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper is refined by Electrolysis Zone refining Oxidation Roasting Electrolysis Zone refining Oxidation Roasting ANSWER DOWNLOAD EXAMIANS APP
Chemistry Vinegar is an aqueous solution of Hydrochloric acid Acetic acid Oxalic acid Citric acid Hydrochloric acid Acetic acid Oxalic acid Citric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chief source for the production of nitrogeneous fertilizers is : Nitrogen Nitrogen dioxide Nitric acid Ammonia Nitrogen Nitrogen dioxide Nitric acid Ammonia ANSWER DOWNLOAD EXAMIANS APP
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