Chemistry If water smells bad, then that odour can be removed by adding Bleach Alum Activated carbon Deactivated nitrogen Bleach Alum Activated carbon Deactivated nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The following are the half lives of four active isotopes. Which one of the following is the most dangerous to handle? 3 billion years 100 years 0.01 minute 13 days 3 billion years 100 years 0.01 minute 13 days ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical properties of isotopes Must be same Need not be different Must be different Need not be same Must be same Need not be different Must be different Need not be same ANSWER DOWNLOAD EXAMIANS APP
Chemistry Main pollutants released from iron and steel industry are CO2, NO2 and SO3 CO2, H2S and NO2 CO, CO2 and SO2 NO, SO3 and H2S CO2, NO2 and SO3 CO2, H2S and NO2 CO, CO2 and SO2 NO, SO3 and H2S ANSWER DOWNLOAD EXAMIANS APP
Chemistry Aspirin is chemically known as Methyl salicylate Acetylsalicylic acid Alkylsalicylic acid Hydroxysalicylate Methyl salicylate Acetylsalicylic acid Alkylsalicylic acid Hydroxysalicylate ANSWER DOWNLOAD EXAMIANS APP
Chemistry High concentration hydrocarbon pollutants in atmospheric air causes Silicosis Respiratory diseases (e.g.asthma) Reduced crop yield Cancer Silicosis Respiratory diseases (e.g.asthma) Reduced crop yield Cancer ANSWER DOWNLOAD EXAMIANS APP
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