Chemistry The manufacture of iron from iron ore involves the process of Electrolysis Oxidation Fractional distillation Reduction Electrolysis Oxidation Fractional distillation Reduction ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of water is Tap water Distilled water Rain water Ground water Tap water Distilled water Rain water Ground water ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical substance present in bones and teeth is Calcium sulphate Calcium chloride Calcium borate Calcium phosphate Calcium sulphate Calcium chloride Calcium borate Calcium phosphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry It is dangerous to leave the car engine running in a closed garage, because it may cause serious pollution due to poisoning by emission of Unburnt petrol CO CO2 SO2 Unburnt petrol CO CO2 SO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The biogas used for cooking is a mixture of which of the following? Carbon dioxide and oxygen Methane and carbon monoxide Methane and carbon dioxide Isobutane and propane Carbon dioxide and oxygen Methane and carbon monoxide Methane and carbon dioxide Isobutane and propane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrification is the biological process of converting N2into nitrite Ammonia into N2 Ammonia into nitrite N2 into nitrate N2into nitrite Ammonia into N2 Ammonia into nitrite N2 into nitrate ANSWER DOWNLOAD EXAMIANS APP
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