Chemistry The percentage of oxygen in air is approximately 0.01 0.21 0.78 1 0.01 0.21 0.78 1 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The depletion in Ozone layer is caused by ________ . Methane Carbon dioxide Chlorofluorocarbons Nitrous oxide Methane Carbon dioxide Chlorofluorocarbons Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ethylene is a ________ molecule. Covalent Polar Nonpolar Ionic Covalent Polar Nonpolar Ionic ANSWER DOWNLOAD EXAMIANS APP
Chemistry ________ is used for making vinegar. Malic acid Acetic acid Tartaric acid Oxalic acid Malic acid Acetic acid Tartaric acid Oxalic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The liquid waste from kitchens and baths, of residences is known as : Domestic sewage Refuse Storm water Sullage Domestic sewage Refuse Storm water Sullage ANSWER DOWNLOAD EXAMIANS APP
Chemistry In a Carbonyl group a carbon atom makes double bond with Hydrogen Carbon None of these Oxygen Hydrogen Carbon None of these Oxygen ANSWER DOWNLOAD EXAMIANS APP
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