Chemistry The coating of a thin layer of zinc on steel or iron objects is known as Galvanising Tinning Hot dipping Electroplating Galvanising Tinning Hot dipping Electroplating ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ferrous sulphate is used in water treatment as a/an Reducing agent Oxidizing agent Adsorbent Coagulant aid Reducing agent Oxidizing agent Adsorbent Coagulant aid ANSWER DOWNLOAD EXAMIANS APP
Chemistry High concentration hydrocarbon pollutants in atmospheric air causes Respiratory diseases (e.g.asthma) Silicosis Reduced crop yield Cancer Respiratory diseases (e.g.asthma) Silicosis Reduced crop yield Cancer ANSWER DOWNLOAD EXAMIANS APP
Chemistry The pollutant responsible for ozone holes is ________ CO2 SO2 CFC CO CO2 SO2 CFC CO ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main component of liquid bleach is: Hydrochloric acid Sodium chloride Sodium hypochlorate Sodium hypochlorite Hydrochloric acid Sodium chloride Sodium hypochlorate Sodium hypochlorite ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chief constituent of natural gas is: Propane Nitrogen Methane Helium Propane Nitrogen Methane Helium ANSWER DOWNLOAD EXAMIANS APP
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