Chemistry Which one of the following elements is an example of noble gas ? Hydrogen Chlorine Helium Nitrogen Hydrogen Chlorine Helium Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following minerals is found in Monazite sand ? Sodium Uranium Thorium Potassium Sodium Uranium Thorium Potassium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Vulcanized rubber contains sulphur 0.02 7-9% 10-15% 3-5% 0.02 7-9% 10-15% 3-5% ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process of covering water pipes made of Iron with Zinc layer to prevent corrosion is called : Alloy formation Zinc plating Galvanization Vulcanization Alloy formation Zinc plating Galvanization Vulcanization ANSWER DOWNLOAD EXAMIANS APP
Chemistry The luster of a metal is due to its high density its chemical inertness its high polishing presence of free electrons its high density its chemical inertness its high polishing presence of free electrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following chemical materials is responsible for the depletion of ozone layer in the atmosphere ? Nitrous oxide Chlorofluorocarbon Carbon dioxide Sulphur dioxide Nitrous oxide Chlorofluorocarbon Carbon dioxide Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
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