Chemistry Copper is refined by Oxidation Roasting Zone refining Electrolysis Oxidation Roasting Zone refining Electrolysis ANSWER DOWNLOAD EXAMIANS APP
Chemistry Diamond is lustrous because It is hard It is colourless It is pure Its refractive index is high It is hard It is colourless It is pure Its refractive index is high ANSWER DOWNLOAD EXAMIANS APP
Chemistry ________ is a by product of sewage treatment and can be decomposed to produce biogas Scum Sludge Sewer Sewage Scum Sludge Sewer Sewage ANSWER DOWNLOAD EXAMIANS APP
Chemistry The BOD values of water indicate the Amount of oxygen used for biochemical oxidation Amount of ozone used for biochemical oxidation Amount of oxygen used for biochemical reduction Amount of organic debris Amount of oxygen used for biochemical oxidation Amount of ozone used for biochemical oxidation Amount of oxygen used for biochemical reduction Amount of organic debris ANSWER DOWNLOAD EXAMIANS APP
Chemistry The charcoal used to decolourise brown sugar solution is Animal charcoal Wood charcoal Coconut charcoal Sugar charcoal Animal charcoal Wood charcoal Coconut charcoal Sugar charcoal ANSWER DOWNLOAD EXAMIANS APP
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