Chemistry Copper is refined by Zone refining Oxidation Roasting Electrolysis Zone refining Oxidation Roasting Electrolysis ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following metals provides amphoteric oxide ? Silver Calcium Aluminium Sodium Silver Calcium Aluminium Sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Global warming is mainly due to accumulation of Carbon monoxide Oxides of sulphur Oxides of nitrogen Carbon dioxide Carbon monoxide Oxides of sulphur Oxides of nitrogen Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Type metal used in printing press is an alloy of Lead and antimony Lead and bismuth Lead and copper Lead and zinc Lead and antimony Lead and bismuth Lead and copper Lead and zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following has greatest mass ? Neutron Hydrogen nucleus Electron Proton Neutron Hydrogen nucleus Electron Proton ANSWER DOWNLOAD EXAMIANS APP
Chemistry KMnO4 can be used as a/an Insecticide Disinfectant Pesticide Fertiliser Insecticide Disinfectant Pesticide Fertiliser ANSWER DOWNLOAD EXAMIANS APP
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