Chemistry Ruby and sapphire are oxides of Iron Tin Copper Aluminium Iron Tin Copper Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a nutrient like fertilizer is present in large quantities in a water bodies, plants grow and decay in large numbers because of suffocating of pond that does not leave enough oxygen needed to support life. This type of pollution is called Smog Green house effect Eutrophication None of these Smog Green house effect Eutrophication None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry The charcoal used to decolourise brown sugar solution is Wood charcoal Animal charcoal Sugar charcoal Coconut charcoal Wood charcoal Animal charcoal Sugar charcoal Coconut charcoal ANSWER DOWNLOAD EXAMIANS APP
Chemistry The nuclear particle having no mass and no charge, but only spin is Neutrino Meson Proton Electron Neutrino Meson Proton Electron ANSWER DOWNLOAD EXAMIANS APP
Chemistry The major harmful gas emitted by automobile vehicle which causes air pollution is Carbon Monoxide Ozone gas Carbon dioxide Methane Carbon Monoxide Ozone gas Carbon dioxide Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chief constituent of natural gas is: Propane Nitrogen Helium Methane Propane Nitrogen Helium Methane ANSWER DOWNLOAD EXAMIANS APP
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