Chemistry The gas that usually causes explosions in coal mines is Methane Air Carbon monoxide Hydrogen Methane Air Carbon monoxide Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry An electrochemical cell which is used as a source of direct electrical current at constant voltage under standard conditions is called a : Generator Uninterrupted power supply (UPS) Battery Power transmittor Generator Uninterrupted power supply (UPS) Battery Power transmittor ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the mass percentage of oxygen in carbon dioxide (CO2) 0.727 0.305 0.658 0.509 0.727 0.305 0.658 0.509 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process of covering water pipes made of Iron with Zinc layer to prevent corrosion is called : Galvanization Zinc plating Vulcanization Alloy formation Galvanization Zinc plating Vulcanization Alloy formation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical name of 'Hypo' commonly used in photography is Silver iodide Sodium nitrate Silver nitrate Sodium thiosulphate Silver iodide Sodium nitrate Silver nitrate Sodium thiosulphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most electropositive elements among the following is Na Cs K Ca Na Cs K Ca ANSWER DOWNLOAD EXAMIANS APP
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