Chemistry The BOD values of water indicate the Amount of oxygen used for biochemical reduction Amount of oxygen used for biochemical oxidation Amount of ozone used for biochemical oxidation Amount of organic debris Amount of oxygen used for biochemical reduction Amount of oxygen used for biochemical oxidation Amount of ozone used for biochemical oxidation Amount of organic debris ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is a micro-element ? Nitrogen Hydrogen Oxygen Chlorine Nitrogen Hydrogen Oxygen Chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry The liquid waste from kitchens and baths, of residences is known as : Storm water Sullage Domestic sewage Refuse Storm water Sullage Domestic sewage Refuse ANSWER DOWNLOAD EXAMIANS APP
Chemistry Burning pyrites ore gives out Nitric oxide gas Carbon dioxide gas Nitrogen dioxide gas Sulphur dioxide gas Nitric oxide gas Carbon dioxide gas Nitrogen dioxide gas Sulphur dioxide gas ANSWER DOWNLOAD EXAMIANS APP
Chemistry The molecular mass of a gas is Twice its vapour pressure Half its vapour pressure Equal to its vapour pressure Not related to its vapour pressure Twice its vapour pressure Half its vapour pressure Equal to its vapour pressure Not related to its vapour pressure ANSWER DOWNLOAD EXAMIANS APP
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