Chemistry The process of removing calcium and magnesium from hard water is known as Flocculation Filtration Water softening Sedimentation Flocculation Filtration Water softening Sedimentation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main active constituent of tea and coffee is aspirin caffeine chlorophyll nicotine aspirin caffeine chlorophyll nicotine ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical(s) most commonly used for cloud seeding or ‘artificial rainmaking’ is/are Sodium Chloride All listed here Silver Iodide Dry ice or frozen carbon dioxide Sodium Chloride All listed here Silver Iodide Dry ice or frozen carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The pH of lemon juice is expected to be More than 7 Nothing can be predicted Less than 7 Equal to 7 More than 7 Nothing can be predicted Less than 7 Equal to 7 ANSWER DOWNLOAD EXAMIANS APP
Chemistry An example of major air pollutant is Helium Carbon monoxide Oxygen Carbon dioxide Helium Carbon monoxide Oxygen Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry High concentration hydrocarbon pollutants in atmospheric air causes Respiratory diseases (e.g.asthma) Silicosis Cancer Reduced crop yield Respiratory diseases (e.g.asthma) Silicosis Cancer Reduced crop yield ANSWER DOWNLOAD EXAMIANS APP
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