Chemistry The gas that usually causes explosions in coal mines is Hydrogen Carbon monoxide Air Methane Hydrogen Carbon monoxide Air Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a nucleon? Electron Positron Neutron Proton Electron Positron Neutron Proton ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is usually not an air-pollutant? Carbon dioxide Sulphur dioxide Nitrous oxide Hydrocarbons Carbon dioxide Sulphur dioxide Nitrous oxide Hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process of covering water pipes made of Iron with Zinc layer to prevent corrosion is called : Galvanization Vulcanization Zinc plating Alloy formation Galvanization Vulcanization Zinc plating Alloy formation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical name of common salt is Sodium Sodium Oxide Sodium Chloride Sodium Bicarbonate Sodium Sodium Oxide Sodium Chloride Sodium Bicarbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is not a pure form of carbon Gold Diamond Graphite Coal Gold Diamond Graphite Coal ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS