Chemistry Copper is refined by Zone refining Electrolysis Oxidation Roasting Zone refining Electrolysis Oxidation Roasting ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following organic compound is used to remove stains of iron compounds? Cinnamic acid Oxalic acid Phthalic acid Benzoic acid Cinnamic acid Oxalic acid Phthalic acid Benzoic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following does not contain Silver ? Lunar Caustic Horn Silver German Silver Ruby Silver Lunar Caustic Horn Silver German Silver Ruby Silver ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following processes is used for the production of Biodiesel ? Transesterification Translation Transcription Transamination Transesterification Translation Transcription Transamination ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following gases is most toxic ? Sulphur dioxide Chlorine Carbon monoxide Carbon dioxide Sulphur dioxide Chlorine Carbon monoxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Main pollutants released from iron and steel industry are CO, CO2 and SO2 CO2, NO2 and SO3 CO2, H2S and NO2 NO, SO3 and H2S CO, CO2 and SO2 CO2, NO2 and SO3 CO2, H2S and NO2 NO, SO3 and H2S ANSWER DOWNLOAD EXAMIANS APP
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