Chemistry Among the following, which is always found in free-state in nature? Silver Copper Sodium Gold Silver Copper Sodium Gold ANSWER DOWNLOAD EXAMIANS APP
Chemistry Food cans are coated with tin and not with zinc because Zinc is less reactive than tin Zinc is costlier than tin Zinc has a higher melting point than tin Zinc is more reactive than tin Zinc is less reactive than tin Zinc is costlier than tin Zinc has a higher melting point than tin Zinc is more reactive than tin ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas which emits from rice field is Nitrogen All of these Ethane Methane Nitrogen All of these Ethane Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used for dating very old objects of archaeological importance? Tritium Radium Carbon-14 Phosphorus-31 Tritium Radium Carbon-14 Phosphorus-31 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The atmospheric gas that is mainly responsible for Green House effect : Ozone Oxygen Nitrogen Carbondioxide Ozone Oxygen Nitrogen Carbondioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Galvanised iron is made by coating iron with Chromium Sulphur Nickel Zinc Chromium Sulphur Nickel Zinc ANSWER DOWNLOAD EXAMIANS APP
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